diff --git a/app.py b/app.py
index 533adf4..5a870ac 100644
--- a/app.py
+++ b/app.py
@@ -142,8 +142,8 @@ with st.sidebar:
     st.markdown("---")
     page = option_menu(
         menu_title  = None,
-        options     = ["Trade Analysis", "Trade Compare", "EA Comparator", "Settings"],
-        icons       = ["bar-chart-line", "arrow-left-right", "sliders", "gear"],
+        options     = ["Trade Analysis", "Trade Compare", "EA Comparator", "Batch Backtest", "Settings"],
+        icons       = ["bar-chart-line", "arrow-left-right", "sliders", "cpu", "gear"],
         default_index = 0,
         styles = {
             "container"       : {"background-color": "transparent", "padding": "0"},
@@ -180,6 +180,11 @@ elif page == "EA Comparator":
     importlib.reload(p)
     p.render()
 
+elif page == "Batch Backtest":
+    import view_batch_backtest as p
+    importlib.reload(p)
+    p.render()
+
 elif page == "Settings":
     import view_settings as p
     importlib.reload(p)
diff --git a/view_batch_backtest.py b/view_batch_backtest.py
new file mode 100644
index 0000000..901ea57
--- /dev/null
+++ b/view_batch_backtest.py
@@ -0,0 +1,622 @@
+"""
+view_batch_backtest.py
+======================
+Batch Backtest runner page for MT5 Tools dashboard.
+Reads config from mt5_batch_config.json.
+Runs backtests in a background thread with live progress updates.
+"""
+
+import streamlit as st
+import os
+import sys
+import glob
+import json
+import shutil
+import subprocess
+import time
+import threading
+import queue
+from datetime import datetime
+
+sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
+
+# ── Constants ─────────────────────────────────────────────────────────────────
+CONFIG_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'mt5_batch_config.json')
+
+PERIOD_MAP = {
+    'M1': 'M1', 'M5': 'M5', 'M15': 'M15', 'M30': 'M30',
+    'H1': 'H1', 'H4': 'H4',
+    'D': 'Daily', 'D1': 'Daily', 'DAILY': 'Daily',
+    'W1': 'Weekly', 'MN': 'Monthly',
+}
+
+MODEL_LABELS = {
+    '1': 'OHLC',
+    '2': 'CTRLPTS',
+    '4': 'EVERYTICK',
+    '5': 'EVERYTICKREAL',
+}
+
+SUFFIX = '.a'
+
+
+# ── Helpers ───────────────────────────────────────────────────────────────────
+
+def load_config():
+    if os.path.isfile(CONFIG_FILE):
+        try:
+            with open(CONFIG_FILE, 'r') as f:
+                return json.load(f)
+        except:
+            pass
+    return None
+
+
+def read_utf16(path):
+    with open(path, 'rb') as f:
+        raw = f.read()
+    if raw[:2] == b'\xff\xfe':
+        return raw[2:].decode('utf-16-le').splitlines()
+    elif raw[:2] == b'\xfe\xff':
+        return raw[2:].decode('utf-16-be').splitlines()
+    return raw.decode('utf-8', errors='replace').splitlines()
+
+
+def write_utf16(path, lines):
+    text = '\r\n'.join(lines) + '\r\n'
+    with open(path, 'wb') as f:
+        f.write(b'\xff\xfe')
+        f.write(text.encode('utf-16-le'))
+
+
+def detect_timeframe(filename):
+    name = os.path.splitext(filename)[0].upper()
+    for token in PERIOD_MAP:
+        if name.endswith('_' + token) or name.endswith('-' + token) or \
+           ('_' + token + '_') in name or ('-' + token + '-') in name:
+            return PERIOD_MAP[token]
+    return None
+
+
+def detect_instrument(filename, n_chars):
+    return os.path.splitext(filename)[0][:n_chars].upper()
+
+
+def update_set_file(set_path, ea_comment, lot_mode, lot_value):
+    lines = read_utf16(set_path)
+
+    def update_param(lines, key, new_val):
+        for i, line in enumerate(lines):
+            if line.strip().startswith(key + '='):
+                parts = line.strip().split('||')
+                parts[0] = f'{key}={new_val}'
+                lines[i] = '||'.join(parts)
+                return True
+        return False
+
+    updated = False
+    for i, line in enumerate(lines):
+        if line.strip().startswith('EA_Comment='):
+            lines[i] = f'EA_Comment={ea_comment}'
+            updated = True
+            break
+    if not updated:
+        lines.append(f'EA_Comment={ea_comment}')
+
+    if lot_mode == 'manual':
+        update_param(lines, 'Risk', '0')
+        update_param(lines, 'StartLots', str(lot_value))
+    elif lot_mode == 'balance':
+        update_param(lines, 'Risk', '9999')
+        update_param(lines, 'LotPerBalance_step', str(lot_value))
+
+    write_utf16(set_path, lines)
+
+
+def build_ini(symbol, period, set_file_path, ini_out_path, report_name, cfg):
+    content = (
+        '[Tester]\r\n'
+        f'Expert={cfg["ea_name"]}\r\n'
+        f'Symbol={symbol}\r\n'
+        f'Period={period}\r\n'
+        f'Optimization={cfg.get("optimization", "0")}\r\n'
+        f'Model={cfg["model"]}\r\n'
+        f'FromDate={cfg["from_date"]}\r\n'
+        f'ToDate={cfg["to_date"]}\r\n'
+        'ForwardMode=0\r\n'
+        f'Deposit={cfg["deposit"]}\r\n'
+        f'Currency={cfg["currency"]}\r\n'
+        'ProfitInPips=0\r\n'
+        f'Leverage={cfg["leverage"]}\r\n'
+        'ExecutionMode=0\r\n'
+        'OptimizationCriterion=0\r\n'
+        'Visual=0\r\n'
+        f'Report={report_name}\r\n'
+        'ReplaceReport=1\r\n'
+        f'Inputs={set_file_path}\r\n'
+        'ShutdownTerminal=1\r\n'
+    )
+    with open(ini_out_path, 'wb') as f:
+        f.write(content.encode('utf-8'))
+
+
+def get_lot_value_from_file(set_path):
+    lines = read_utf16(set_path)
+    for line in lines:
+        if line.strip().startswith('LotPerBalance_step='):
+            parts = line.strip().split('||')
+            return parts[0].replace('LotPerBalance_step=', '').strip()
+    return None
+
+
+# ── Background batch runner ───────────────────────────────────────────────────
+
+def run_batch(set_files, cfg, report_folder, lot_mode, lot_values,
+              instruments, periods, progress_queue):
+    """
+    Runs in a background thread.
+    Sends progress updates via progress_queue as dicts.
+    """
+    tester_folder  = cfg['tester_folder']
+    terminal_path  = cfg['terminal_path']
+    out_set_folder = os.path.join(os.path.dirname(set_files[0]), '_batch_modified')
+    os.makedirs(out_set_folder, exist_ok=True)
+    os.makedirs(report_folder, exist_ok=True)
+
+    terminal_data = os.path.dirname(tester_folder)
+
+    for idx, set_path in enumerate(set_files):
+        filename    = os.path.basename(set_path)
+        name_stem   = os.path.splitext(filename)[0]
+        symbol      = instruments[idx]
+        period      = periods[idx]
+        lot_mode_f  = lot_mode
+        lot_value   = lot_values[idx]
+        model_label = MODEL_LABELS.get(cfg['model'], f"M{cfg['model']}")
+        report_name = f"{name_stem}_{model_label}"
+        ea_comment  = f"{name_stem} {symbol} {period} {model_label}"
+
+        progress_queue.put({
+            'idx'     : idx,
+            'total'   : len(set_files),
+            'file'    : filename,
+            'symbol'  : symbol,
+            'period'  : period,
+            'status'  : 'running',
+            'message' : f"Running backtest...",
+        })
+
+        try:
+            # Copy and modify set file
+            rel_path   = os.path.relpath(set_path, os.path.dirname(set_files[0]))
+            rel_subdir = os.path.dirname(rel_path)
+            out_dir    = os.path.join(out_set_folder, rel_subdir) if rel_subdir else out_set_folder
+            rep_dir    = os.path.join(report_folder, rel_subdir)  if rel_subdir else report_folder
+            os.makedirs(out_dir, exist_ok=True)
+            os.makedirs(rep_dir, exist_ok=True)
+
+            modified_set = os.path.join(out_dir, filename)
+            shutil.copy2(set_path, modified_set)
+
+            if lot_mode_f != 'asis':
+                update_set_file(modified_set, ea_comment, lot_mode_f, lot_value)
+            else:
+                # Just update EA_Comment
+                update_set_file(modified_set, ea_comment, None, None)
+
+            ini_path = os.path.join(tester_folder, f"{name_stem}.ini")
+            build_ini(symbol, period, modified_set, ini_path, report_name, cfg)
+
+            # Launch MT5 minimised
+            si = subprocess.STARTUPINFO()
+            si.dwFlags    |= subprocess.STARTF_USESHOWWINDOW
+            si.wShowWindow = 6  # SW_MINIMIZE
+            proc = subprocess.Popen(
+                [terminal_path, f'/config:{ini_path}'],
+                startupinfo=si
+            )
+
+            # Wait for completion
+            while proc.poll() is None:
+                time.sleep(5)
+
+            # Find and copy report
+            search_dirs = [
+                terminal_data,
+                os.path.join(terminal_data, 'MQL5', 'Profiles', 'Tester'),
+                tester_folder,
+            ]
+
+            success    = False
+            report_out = None
+            for search_dir in search_dirs:
+                htm_src = os.path.join(search_dir, report_name + '.htm')
+                if os.path.isfile(htm_src):
+                    htm_dest = os.path.join(rep_dir, report_name + '.htm')
+                    shutil.copy2(htm_src, htm_dest)
+                    report_out = htm_dest
+                    # Copy associated files
+                    for fn in os.listdir(search_dir):
+                        if fn.startswith(report_name) and not fn.endswith('.htm'):
+                            shutil.copy2(
+                                os.path.join(search_dir, fn),
+                                os.path.join(rep_dir, fn)
+                            )
+                    # Clean up source
+                    os.remove(htm_src)
+                    for fn in os.listdir(search_dir):
+                        if fn.startswith(report_name) and not fn.endswith('.htm'):
+                            try:
+                                os.remove(os.path.join(search_dir, fn))
+                            except:
+                                pass
+                    success = True
+                    break
+
+            progress_queue.put({
+                'idx'       : idx,
+                'total'     : len(set_files),
+                'file'      : filename,
+                'symbol'    : symbol,
+                'period'    : period,
+                'status'    : 'done' if success else 'failed',
+                'message'   : f"Report saved" if success else "No report found",
+                'report'    : report_out,
+            })
+
+        except Exception as e:
+            progress_queue.put({
+                'idx'     : idx,
+                'total'   : len(set_files),
+                'file'    : filename,
+                'symbol'  : symbol,
+                'period'  : period,
+                'status'  : 'error',
+                'message' : str(e),
+            })
+
+    progress_queue.put({'status': 'complete'})
+
+
+# ── Main render ───────────────────────────────────────────────────────────────
+
+def render():
+    st.title("📋 Batch Backtest")
+
+    # ── Session state ─────────────────────────────────────────────────────────
+    for k, v in {
+        'bb_running'  : False,
+        'bb_results'  : [],
+        'bb_queue'    : None,
+        'bb_thread'   : None,
+        'bb_complete' : False,
+    }.items():
+        if k not in st.session_state:
+            st.session_state[k] = v
+
+    # ── Config check ──────────────────────────────────────────────────────────
+    cfg = load_config()
+    if cfg is None:
+        st.error("No config found — run `mt5_batch_backtest.py` once from the terminal to set up config, then return here.")
+        return
+
+    with st.expander("📁 Active Config", expanded=False):
+        c1, c2 = st.columns(2)
+        c1.markdown(f"**Terminal:** {cfg.get('terminal_label', 'Unknown')}")
+        c1.markdown(f"**EA:** `{cfg.get('ea_name', '')}`")
+        c1.markdown(f"**Dates:** {cfg.get('from_date')} → {cfg.get('to_date')}")
+        c2.markdown(f"**Model:** {cfg.get('model')} ({MODEL_LABELS.get(cfg.get('model','1'), '?')})")
+        c2.markdown(f"**Deposit:** {cfg.get('deposit')} {cfg.get('currency')}")
+        c2.markdown(f"**Leverage:** {cfg.get('leverage')}  **Suffix:** `{cfg.get('suffix', '.a')}`")
+        st.caption(f"Config file: {CONFIG_FILE}")
+
+    suffix = cfg.get('suffix', '.a')
+
+    # ── Session overrides ─────────────────────────────────────────────────────
+    # Scan available EAs from terminal MQL5/Experts/Market folder
+    tester_folder = cfg.get('tester_folder', '')
+    experts_dir   = os.path.join(os.path.dirname(tester_folder), 'MQL5', 'Experts', 'Market')
+    ea_options    = []
+    if os.path.isdir(experts_dir):
+        for fn in sorted(os.listdir(experts_dir)):
+            if fn.lower().endswith('.ex5'):
+                ea_options.append(f"Market\\{fn}")
+
+    if ea_options:
+        current_ea  = cfg.get('ea_name', ea_options[0])
+        default_idx = ea_options.index(current_ea) if current_ea in ea_options else 0
+        selected_ea = st.selectbox(
+            "Expert Advisor",
+            ea_options,
+            index=default_idx,
+            key='bb_ea'
+        )
+    else:
+        selected_ea = st.text_input(
+            "Expert Advisor",
+            value=cfg.get('ea_name', ''),
+            key='bb_ea'
+        )
+
+    # Use selected EA for this session (don't save to config)
+    cfg = dict(cfg)
+    cfg['ea_name'] = selected_ea
+
+    # ── Set file folder ───────────────────────────────────────────────────────
+    st.divider()
+    st.subheader("1 — Set Files")
+
+    col_fi, col_rec = st.columns([4, 1])
+    with col_fi:
+        set_folder = st.text_input(
+            "Folder containing .set files",
+            placeholder=r"C:\Users\pc\Desktop\EA\MySetFiles",
+            key='bb_folder'
+        )
+    with col_rec:
+        st.markdown("<br>", unsafe_allow_html=True)
+        recurse = st.toggle("Include subfolders", value=True, key='bb_recurse')
+
+    set_files = []
+    if set_folder and os.path.isdir(set_folder):
+        if recurse:
+            all_files = sorted(glob.glob(os.path.join(set_folder, '**', '*.set'), recursive=True))
+        else:
+            all_files = sorted(glob.glob(os.path.join(set_folder, '*.set')))
+        set_files = [f for f in all_files
+                     if not os.path.basename(f).lower().startswith('optimization')
+                     and '_batch_modified' not in os.path.normpath(f).replace(os.sep, '/')]
+        skipped = len(all_files) - len(set_files)
+        if set_files:
+            st.success(f"Found **{len(set_files)}** .set file(s)" +
+                       (f" · {skipped} Optimization file(s) excluded" if skipped else ""))
+        else:
+            st.warning("No .set files found in that folder")
+    elif set_folder:
+        st.error("Folder not found")
+
+    if not set_files:
+        return
+
+    # ── Report folder ─────────────────────────────────────────────────────────
+    default_reports = os.path.join(set_folder, 'reports')
+    report_folder   = st.text_input("Report output folder", value=default_reports, key='bb_reports')
+
+    # ── Lot size mode ─────────────────────────────────────────────────────────
+    st.divider()
+    st.subheader("2 — Lot Size")
+
+    lot_mode_label = st.radio(
+        "Lot size mode",
+        ["Use set file as-is", "Manual lot size (all files)", "Lots per balance (from file)"],
+        horizontal=True, key='bb_lot_mode'
+    )
+    lot_mode_map = {
+        "Use set file as-is"           : 'asis',
+        "Manual lot size (all files)"  : 'manual',
+        "Lots per balance (from file)" : 'balance',
+    }
+    lot_mode = lot_mode_map[lot_mode_label]
+
+    manual_lots = None
+    if lot_mode == 'manual':
+        manual_lots = st.text_input("StartLots for all files", value="0.01", key='bb_lots')
+
+    # ── Instrument & Timeframe defaults ──────────────────────────────────────
+    st.divider()
+    st.subheader("3 — Instrument & Timeframe")
+
+    col1, col2, col3 = st.columns(3)
+    with col1:
+        instr_mode = st.radio(
+            "Instrument default",
+            ["One for all files", "Extract from filename"],
+            key='bb_instr_mode'
+        )
+        instr_global  = None
+        instr_n_chars = 6
+        if instr_mode == "One for all files":
+            instr_global = st.text_input("Instrument (without suffix)",
+                           placeholder="GBPJPY", key='bb_instr').upper()
+        else:
+            instr_n_chars = st.number_input("Characters from filename start",
+                           min_value=1, max_value=12, value=6, key='bb_nchars')
+
+    with col2:
+        tf_mode = st.radio(
+            "Timeframe default",
+            ["One for all files", "Detect from filename"],
+            key='bb_tf_mode'
+        )
+        tf_global = None
+        if tf_mode == "One for all files":
+            tf_global = st.selectbox("Timeframe",
+                        ['Daily','H4','H1','M30','M15','M5','M1','Weekly'], key='bb_tf')
+
+    with col3:
+        st.markdown("<br><br>", unsafe_allow_html=True)
+        st.info("Review and edit all values in the table below before running.")
+
+    # ── Build initial values ───────────────────────────────────────────────────
+    import pandas as pd
+
+    ml = MODEL_LABELS.get(cfg['model'], f"M{cfg['model']}")
+
+    preview_rows = []
+    for fp in set_files:
+        fn   = os.path.basename(fp)
+        stem = os.path.splitext(fn)[0]
+
+        # Instrument default
+        if instr_mode == "One for all files" and instr_global:
+            inst = instr_global
+        else:
+            inst = detect_instrument(fn, int(instr_n_chars))
+
+        # Timeframe default
+        if tf_mode == "One for all files" and tf_global:
+            period = tf_global
+        else:
+            period = detect_timeframe(fn) or 'Daily'
+
+        # Lot value default
+        if lot_mode == 'manual':
+            lot_val = manual_lots or '0.01'
+        elif lot_mode in ('balance', 'balance_ask'):
+            lot_val = get_lot_value_from_file(fp) or '100'
+        else:
+            lot_val = 'as-is'
+
+        preview_rows.append({
+            'File'       : fn,
+            'Symbol'     : inst + suffix,
+            'Period'     : period,
+            'Lot Value'  : lot_val,
+            'Report Name': f"{stem}_{ml}.htm",
+        })
+
+    # ── Editable preview table ─────────────────────────────────────────────────
+    st.divider()
+    st.subheader("4 — Preview & Edit")
+    st.caption("All values are editable — review before running. Symbol includes suffix.")
+
+    lot_col_disabled = lot_mode in ('asis', 'manual')
+
+    edited = st.data_editor(
+        pd.DataFrame(preview_rows),
+        use_container_width=True,
+        hide_index=True,
+        column_config={
+            'File'       : st.column_config.TextColumn('File', disabled=True),
+            'Symbol'     : st.column_config.TextColumn('Symbol'),
+            'Period'     : st.column_config.SelectboxColumn('Period',
+                           options=['Daily','H4','H1','M30','M15','M5','M1','Weekly']),
+            'Lot Value'  : st.column_config.TextColumn('Lot Value',
+                           disabled=lot_col_disabled,
+                           help='Disabled for as-is and manual modes'),
+            'Report Name': st.column_config.TextColumn('Report Name', disabled=True),
+        },
+        key='bb_preview_table'
+    )
+
+    # Extract final values from edited table
+    instruments = list(edited['Symbol'])
+    periods     = list(edited['Period'])
+    lot_values  = []
+    for i, fp in enumerate(set_files):
+        if lot_mode == 'manual':
+            lot_values.append(manual_lots or '0.01')
+        elif lot_mode in ('balance', 'balance_ask'):
+            lot_values.append(str(edited.iloc[i]['Lot Value']))
+        else:
+            lot_values.append(None)
+
+    # ── Run button ─────────────────────────────────────────────────────────────
+    st.divider()
+
+    # Poll for progress updates
+    if st.session_state['bb_running'] and st.session_state['bb_queue']:
+        q = st.session_state['bb_queue']
+        while not q.empty():
+            update = q.get_nowait()
+            if update.get('status') == 'complete':
+                st.session_state['bb_running']  = False
+                st.session_state['bb_complete'] = True
+            else:
+                # Update or add to results
+                results = st.session_state['bb_results']
+                found   = False
+                for r in results:
+                    if r['file'] == update['file']:
+                        r.update(update)
+                        found = True
+                        break
+                if not found:
+                    results.append(update)
+                st.session_state['bb_results'] = results
+
+    col_run, col_stop = st.columns([2, 1])
+
+    with col_run:
+        run_disabled = st.session_state['bb_running'] or not set_files
+        if st.button("▶ Start Batch", type="primary",
+                     disabled=run_disabled, use_container_width=True):
+            # Validate
+            if not os.path.isfile(cfg['terminal_path']):
+                st.error(f"terminal64.exe not found at: {cfg['terminal_path']}")
+            elif not os.path.isdir(cfg['tester_folder']):
+                st.error(f"Tester folder not found: {cfg['tester_folder']}")
+            else:
+                st.session_state['bb_results']  = []
+                st.session_state['bb_complete'] = False
+                st.session_state['bb_running']  = True
+
+                q = queue.Queue()
+                st.session_state['bb_queue'] = q
+
+                t = threading.Thread(
+                    target = run_batch,
+                    args   = (set_files, cfg, report_folder, lot_mode,
+                               lot_values, instruments, periods, q),
+                    daemon = True
+                )
+                st.session_state['bb_thread'] = t
+                t.start()
+                st.rerun()
+
+    with col_stop:
+        if st.session_state['bb_running']:
+            st.warning("⏳ Batch running...")
+
+    # ── Progress display ───────────────────────────────────────────────────────
+    if st.session_state['bb_results'] or st.session_state['bb_running']:
+        st.divider()
+        st.subheader("Progress")
+
+        if st.session_state['bb_running']:
+            done  = len([r for r in st.session_state['bb_results'] if r.get('status') in ('done', 'failed', 'error')])
+            total = len(set_files)
+            st.progress(done / total if total else 0, text=f"{done} / {total} complete")
+            time.sleep(2)
+            st.rerun()
+
+        results = st.session_state['bb_results']
+        if results:
+            status_icon = {
+                'running': '⏳',
+                'done'   : '✅',
+                'failed' : '❌',
+                'error'  : '⚠️',
+            }
+
+            def colour_status(val):
+                if val == '✅': return 'color: #2dc653'
+                if val == '❌': return 'color: #e63946'
+                if val == '⚠️': return 'color: #f77f00'
+                return 'color: #aaa'
+
+            rows = [{
+                'Status' : status_icon.get(r.get('status', ''), ''),
+                'File'   : r.get('file', ''),
+                'Symbol' : r.get('symbol', ''),
+                'Period' : r.get('period', ''),
+                'Message': r.get('message', ''),
+            } for r in results]
+
+            df_prog = pd.DataFrame(rows)
+            st.dataframe(
+                df_prog.style.map(colour_status, subset=['Status']),
+                use_container_width=True, hide_index=True
+            )
+
+        if st.session_state['bb_complete']:
+            done   = len([r for r in results if r.get('status') == 'done'])
+            failed = len([r for r in results if r.get('status') in ('failed', 'error')])
+            st.success(f"Batch complete — {done} succeeded, {failed} failed")
+            st.caption(f"Reports saved to: {report_folder}")
+
+            if st.button("🔄 Clear & Run Another"):
+                st.session_state['bb_results']  = []
+                st.session_state['bb_complete'] = False
+                st.session_state['bb_running']  = False
+                st.rerun()
\ No newline at end of file