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C

Citigroup Inc
C KEY LEVELSCaptured 2026-09-16 05:10 ET
$136.62C last price
+0.33%Change on the session
$33.1MNet dealer gamma, Neutral Gamma: Spot At the Flip
140Call wall, largest gamma strike at $17.7M net
135Put wall

Prices and gamma are point-in-time snapshots taken at the time shown. Dealer positioning is an assumption, not an observable: open interest shows that a contract exists, never which side a dealer holds. How dealer gamma is computed.

FinanceBanks DiversifiedMkt Cap: 130BAvg Vol: 15M

LIVE MARKET SNAPSHOT

LAST PRICE
$136.62+0.33%
Volume 842
DEALER GAMMA (GEX)
Call Wall140
Put Wall135
GEX Flip135
Vol Trigger135
Net GEX$33.1M
Neutral Gamma: Spot At the Flip

Cached snapshot as of 2026-09-16 09:10 UTC, live streaming data in the terminal.

C DEALER GAMMA BY STRIKE

Part of the SquawkFlow GEX Calculator: gamma by strike for any US stock. Compare with SPX GEX.

Net gamma exposure at each strike near C's spot price, signed from the dealer perspective, calls positive, puts negative. Green strikes are where hedging tends to dampen moves; red is where it tends to amplify them. Dealer positioning is an assumption rather than an observable, so treat these as a map of where hedging pressure concentrates, not a forecast.

Unit: USD of dealer gamma per 1 percent move in spot. A window of the C option chain, not the whole book: the 30 strikes nearest spot out of 65 seen, 1,116 contract rows spanning 16 expirations. Gamma is taken as the chain publishes it per contract; nothing here is re-priced. Crossed with the open interest carried on that chain.

New to these levels? Start with the call wall and put wall, or the zero gamma level where the sign of dealer hedging flips.

StrikeNet GEXCall GEXPut GEXConcentration
121-$16.8K$0-$16.8K
122-$2.0M$0-$2.0M
123-$9.8K$0-$9.8K
124-$78.4K$3.5K-$81.9K
125-$10.0M$877.6K-$10.9M
126-$124.3K$0-$124.3K
127-$280.3K$13.7K-$294.0K
128-$478.8K$1.5K-$480.3K
129-$518.5K$597-$519.1K
130-$7.8M$5.5M-$13.3M
131-$848.0K$84.1K-$932.1K
132-$1.0M$312.1K-$1.3M
133-$40.0K$1.7M-$1.8M
134-$246.9K$1.2M-$1.5M
135PUT WALLGEX FLIP$4.2M$17.9M-$13.7M
136$3.6M$4.7M-$1.1M
137SPOT$1.4M$2.0M-$586.3K
138$5.8M$6.9M-$1.1M
139-$335.0K$1.5M-$1.8M
140CALL WALL$17.7M$23.8M-$6.1M
141$1.7M$2.2M-$444.0K
142$1.1M$1.1M-$30.6K
143$2.1M$2.1M$0
144$538.2K$538.2K$0
145$9.5M$10.5M-$949.9K
146$208.5K$208.5K$0
147$230.2K$230.2K$0
148$42.0K$42.0K$0
149$33.7K$33.7K$0
150$8.7M$8.7M-$42.2K

These levels were captured September 16, 2026 from the open interest carried on the option chain. New levels post before each market open. Today's SPX gamma levels.

ABOUT C

Citigroup provides financial services across consumer banking, institutional banking, treasury and trade solutions, and wealth management. The company has the most global footprint among U.S. banks, operating in 160+ countries, and is executing a multi-year simplification strategy.

WHY TRACK C ON SQUAWKFLOW

C options flow tracks the ongoing transformation and simplification story. International exposure makes C a proxy for global banking conditions. Cheap valuation relative to peers creates value investor options accumulation patterns.

C DATA ON SQUAWKFLOW

Options Flow

C options flow, unusual activity, and volume concentrations from the session chain

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