> ## Documentation Index > Fetch the complete documentation index at: https://docs.polymarket.com/llms.txt > Use this file to discover all available pages before exploring further. # Markets > Listed perpetual markets and trading parameters Polymarket Perps markets track underlying assets across indices, commodities, crypto assets, and equities. Each market has its own trading parameters. ## Instruments Perps markets are represented by instruments, which are the listed perpetual contracts available to trade. | ID | Symbol | Category | Base Asset | Max Leverage | | -- | ------------ | ----------- | ---------- | ------------ | | 1 | `SP500-USD` | `index` | `SP500` | 20x | | 2 | `GOLD-USD` | `commodity` | `GOLD` | 20x | | 3 | `WTIOIL-USD` | `commodity` | `WTIOIL` | 20x | | 4 | `NAS100-USD` | `index` | `NAS100` | 20x | | 5 | `SILVER-USD` | `commodity` | `SILVER` | 20x | | 6 | `BTC-USD` | `crypto` | `BTC` | 20x | | 7 | `ETH-USD` | `crypto` | `ETH` | 20x | | 8 | `SOL-USD` | `crypto` | `SOL` | 20x | | 9 | `SPCX-USD` | `equity` | `SPCX` | 10x | Each instrument also includes details that shape how it trades: * Underlying asset * Collateral and quote asset * Price and quantity precision * Tick size * Minimum order size * Risk tiers and leverage caps * Mark, index, and funding configuration Market parameters can change as markets evolve. Builders should read live instrument details from [Market Data](/perps/market-data#fetch-instruments) before submitting orders. ## Price Feeds Each market tracks an underlying market through external price feeds. Those feeds drive the [Index Price](/perps/learn-about-trading/index-price), and the Index Price helps anchor the [Mark Price](/perps/learn-about-trading/mark-price).