FDS Options Key Levels — 2026-10-16 Expiration
As of 2026-10-09 19:22 ET, FactSet Research Systems (FDS) max pain for the 2026-10-16 expiration is $310 with the stock at $301.55; dealers are in negative gamma (net GEX -1.4M); options imply a ±15.13% move by expiration.
| Spot price | $301.55 |
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| Max pain | $310 |
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| Gamma flip | No flip (net GEX does not change sign) |
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| Call Wall | $290 (36 open interest) |
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| Put Wall | $250 (4,022 open interest) |
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| Net gamma exposure (GEX) | -1.4M — negative gamma |
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| Implied move | ±15.13% (±$45.64) |
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| At-the-money implied volatility | 48.3% |
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| Put/call open interest ratio | 38.39 |
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| Call / put open interest | 114 / 4,377 |
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| Call / put volume | 5 / 15 |
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What is FDS max pain today?
$310 for the 2026-10-16 expiration, 2.8% above the current price of $301.55.
What is FDS gamma exposure (GEX)?
Net GEX is -1.4M (negative gamma).
Where are the FDS call wall and put wall?
Call wall $290 (resistance), put wall $250 (support).
FDS Dealer Positioning Insights
- Negative Gamma Environment — Dealers are short gamma — they sell into dips and buy into rips, amplifying moves. Trend-following strategies favored. Expect larger directional moves.
- High Put/Call OI Ratio (38.39) — Put open interest dominates, indicating hedging/bearish positioning. Extreme readings can be contrarian bullish.
- Max Pain @ $310.0 — Spot is 2.8% below Max Pain. Gravitational pull may increase as expiry approaches.
- Support $250.0 / Resistance $290.0 — Put Wall at $250.0 acts as support. Call Wall at $290.0 acts as resistance. Net gamma concentration creates dealer hedging flows at these levels.
- Expected Move (Straddle-mid): ±15.13% ($45.64) — ATM straddle-mid implies a ±15.13% move by expiry. Range: $255.91 — $347.19
Largest FDS Open Interest Strikes
Calls: $290 (36), $250 (22), $300 (14), $310 (11), $330 (7). Puts: $250 (4,022), $220 (150), $310 (100), $230 (24), $240 (19).
Later FDS expirations: 2026-11-20, 2026-12-18, 2027-01-15, 2027-02-19, 2027-03-19.
Max pain is the strike at which option holders lose the most at expiration. Gamma exposure (GEX) estimates how much options dealers must hedge as the stock moves: positive gamma tends to dampen moves, negative gamma amplifies them, and the gamma flip is the price where net GEX changes sign. Call and put walls are the strikes where call and put gamma exposure is most concentrated, often read as resistance and support. Methodology
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