TradFi arbitrage: stock, metal, index and forex perps

TradFi arbitrage is profiting from price gaps on traditional-finance assets - stocks, metals, indices, FX - that crypto exchanges now list as perpetual futures. These are synthetic USDT-settled contracts: you never hold a real share or a gram of gold, you trade a perp whose price tracks an external reference. That opens the same delta-neutral routes as crypto futures (cross-venue spread, basis to the underlying, funding divergence) - but on instruments with trading-session hours, dividends and corporate actions that crypto never had. Below: what TradFi perps are and who lists them, how they differ from crypto perps, the arbitrage mechanics, the risks unique to TradFi, a worked example, and an FAQ.

What are TradFi perps

A TradFi perp is a synthetic perpetual on a non-crypto asset, settled in USDT. The exchange quotes a contract - say AAPL or XAUUSDT - and pegs it to an external index (the real stock or spot-metal price) through funding, exactly like a crypto perp is pegged to spot. No share is delivered. It's a cash-settled derivative.

Who lists them, and how to spot the ticker:

• BingX - synthetic prefixes: NCSK* = stock, NCCO* = commodity, NCFX* = forex (e.g. NCSKAAPL, NCCOGOLD).
• MEXC - *STOCK_USDT suffix for equity perps.
• OKX - an instCategory marker on the instrument (1 = crypto, 3 = equity, 4 = commodity).
• Bitmart / Lbank - dedicated stock/commodity perp contracts.
• Hyperliquid - HIP-3 builder-deployed markets (commodity / equity tagged).

The rest (Binance, Bybit, Gate, …) are crypto-only by default. Because the same underlying (gold, AAPL) can appear on several venues under different tickers, TradFi perps are a natural arbitrage surface - but only once you map them to one canonical asset.

How they differ from crypto perps

This is the whole game. A TradFi perp is not a 24/7 instrument wearing a crypto costume:

• Session hours. The underlying (a stock, an index) trades only during its exchange's session - NYSE hours, not 24/7. Outside the session the reference price is frozen (last close), while the perp keeps trading. On the next open the index jumps to the new price and the perp gaps to meet it.
• Dividends & corporate actions. A stock pays dividends, splits, gets re-listed. The synthetic perp adjusts (or the exchange bakes it into funding) - a discontinuity crypto never has.
• Funding on a synthetic. Funding still tethers the perp to its index, but the index itself can be stale (frozen overnight) or thin, so the rate can swing oddly around session boundaries.
• Liquidity. TradFi perp books are usually thinner than the majors - wider spreads, easier to move, more mis-scaled/garbage levels to filter.

Arbitrage mechanics

The routes are the same family as futures arbitrage, applied to TradFi underlyings:

• Cross-venue spread. The same asset (gold, AAPL) as a perp on two exchanges. When the two prices diverge beyond fees, go short the dearer / long the cheaper, same size - delta-neutral, no coin transfer, profit on convergence. This is the cleanest TradFi route.
• Basis to the underlying. If you also have access to the real asset (a TradFi broker, a CFD, spot gold), the perp-vs-underlying basis is harvestable like a futures↔spot basis - but mind the session: the basis is only "real" while the underlying market is open.
• Funding divergence. TradFi perp funding can diverge sharply between venues (thin synthetic indices). Long the perp where funding is negative, short where it's positive - collect from both sides, delta-neutral, same as crypto funding arbitrage.

Risks specific to TradFi

These are on top of the usual leverage-liquidation risk of any perp route:

• Session gaps. The big one. Over a weekend or overnight the index is frozen but the perp drifts on order-flow. At the open it gaps to the new reference. A leg can be liquidated on that gap before the other offsets it.
• Dividend / corporate-action gaps. An ex-dividend date or a split moves the synthetic discontinuously. If your route straddles it, the "spread" you saw was an artifact.
• Thin liquidity → fake spreads. A wide quoted spread on an illiquid synthetic often isn't executable - one mis-scaled level or a stale book inflates it. Liquidity and order-book depth matter more than the headline percent.
• Ticker collisions. A stock ticker can collide with a crypto one (QNT = Quant the token vs Quantinuum the equity, or NFLX/AMD stock perps). A naive aggregator that merges them produces phantom spreads. Finder separates by asset-class so a stock leg never merges with a same-ticker crypto leg.
• Regulatory / listing risk. Synthetic equity perps live in a grey zone, and venues delist them with little notice. Don't park size you can't exit.

Example: a cross-venue gold (XAU) route

Two XAUUSDT perps (gold) on exchanges A and B, while the spot-gold market is open (so the index is live, not frozen). $10,000 per leg, delta-neutral, nothing transferred between venues.

Gold spot/index:        $2,650.0   (market open — index live)
XAUUSDT perp @ A:       $2,653.8   → +0.143% to index
XAUUSDT perp @ B:       $2,649.1   → −0.034% to index
Cross-venue gap A vs B:  0.177%

Route: SHORT $10k @ A (dearer) + LONG $10k @ B (cheaper), delta-neutral

Convergence capture (perps re-converge to the live index):
  0.177% on $10,000               = +$17.7

Entry/exit cost (4 takers ~0.05% × $10k):
  −$20 to open + close both legs
──────────────────────────────────
Net ≈ −$2.3 on this gap alone

That negative result is the point: a sub-0.2% TradFi gap doesn't cover four taker fees. TradFi routes pay when the gap is wide enough (thin books gap further) and the session is open so convergence is real - or when you also harvest funding while delta-neutral. Chasing a fat weekend number on a frozen index is how you get gapped at the open. Fees, liquidity and session state decide the trade, not the headline percent.

FAQ - TradFi arbitrage

What is a TradFi perp?

A synthetic, USDT-settled perpetual future on a traditional-finance asset - a stock, metal, index or FX pair - listed on a crypto exchange. You never hold the real asset. The perp is pegged to an external index via funding.

Which exchanges list stock and commodity perps?

BingX (NCSK*/NCCO*/NCFX*), MEXC (*STOCK_USDT), OKX (equity/commodity instCategory), Bitmart and Lbank (dedicated contracts), and Hyperliquid (HIP-3 markets). Most other venues are crypto-only.

Why is TradFi arbitrage riskier than crypto arbitrage?

The underlying trades on session hours, not 24/7. Outside the session the reference price is frozen while the perp drifts, so a "spread" can be an artifact that gaps violently at the next open - on top of the normal leverage-liquidation risk.

Can a stock ticker collide with a crypto one?

Yes - e.g. QNT (Quant token vs Quantinuum equity). A screener that doesn't separate by asset-class will merge them and show phantom spreads. Finder tags each instrument's class to prevent cross-class merges.

Is a wide weekend spread on a stock perp free money?

Usually not. Over the weekend the equity index is frozen while the perp keeps trading, so the gap is mostly a frozen-vs-drifting artifact. It can snap back - or widen against you - at the Monday open.

Related: the pillar Crypto arbitrage guide, futures arbitrage, funding arbitrage and cross-exchange arbitrage. Live spreads across 20+ exchanges - with an asset-class filter for stocks / commodities / forex / crypto - are in the spreads section of the web dashboard.