Most active SPX options / Thu Oct 15 2026

Most active SPX options on Thursday, October 15, 2026

On Thu Oct 15 2026 the most traded SPX option was the 7750 C 0DTE: 213,074 contracts, $64.0M premium, 59.5x its morning open interest; 33% of its volume traded inside multi-leg orders.

Open in replayThe session's levels

Top volume

The ten contracts with the most contracts traded. The tape holds 22 expiries this session, Oct 15 to Nov 13.

#ContractExpiryDTEVolumeOIVol/OIPremiumMulti-leg
17750 COct 150213,0743,58359.5x$64.0M33%
27745 COct 150142,120659216x$57.8M34%
37755 COct 150138,5861,41298.1x$31.3M44%
47740 COct 150138,074939147x$71.1M33%
57730 COct 150125,838762165x$97.3M28%
67735 COct 150117,461518227x$75.4M31%
77720 POct 150114,4171,85061.8x$68.7M30%
87760 COct 150109,2601,66565.6x$18.7M48%
97700 POct 150107,0983,54230.2x$52.8M36%
107725 COct 150101,6251,83155.5x$95.0M31%

Top premium

The ten contracts with the most dollars traded.

#ContractExpiryDTEVolumeOIVol/OIPremiumMulti-leg
17750 POct 301124,4582,4769.88x$231.0M100%
27650 POct 301126,55914,3571.85x$151.1M99%
37730 COct 150125,838762165x$97.3M28%
47725 COct 150101,6251,83155.5x$95.0M31%
57720 COct 15078,3651,07473.0x$89.1M35%
67735 COct 150117,461518227x$75.4M31%
77700 COct 15039,2883,31511.9x$75.2M39%
87740 COct 150138,074939147x$71.1M33%
97720 POct 150114,4171,85061.8x$68.7M30%
107725 POct 15095,5982,07246.1x$65.3M31%

Top open interest

The largest morning open interest across the whole SPX chain, traded today or not.

#ContractExpiryDTEVolumeOIVol/OIPremiumMulti-leg
17000 P AMDec 1846–361,732–––
27000 C AMDec 1846–337,988–––
38000 C AMDec 1846–325,523–––
48000 P AMDec 1846–303,535–––
57000 P AMOct 161–195,437–––
68000 C AMOct 161–185,238–––
77000 C AMOct 161–175,327–––
88000 P AMOct 161–173,642–––
96000 P AMDec 1846–151,949–––
107000 P AMJan 1566–141,283–––

Unusual Vol/OI

Volume against the morning open interest, for contracts with 1,000 or more traded.

#ContractExpiryDTEVolumeOIVol/OIPremiumMulti-leg
17735 COct 150117,461518227x$75.4M31%
27745 COct 150142,120659216x$57.8M34%
37730 COct 150125,838762165x$97.3M28%
47740 COct 150138,074939147x$71.1M33%
57735 POct 15069,275659105x$40.4M27%
66400 POct 291020,32220798.2x$3.96M1%
77755 COct 150138,5861,41298.1x$31.3M44%
87745 POct 15064,07885175.3x$37.2M19%
97720 COct 15078,3651,07473.0x$89.1M35%
107740 POct 15088,4711,24371.2x$46.9M22%

Structure mix of the 7750 C 0DTE

How the day's most traded contract printed: alone, or as one leg of a multi-leg order, by shape.

StructureContractsShare
single-leg prints143,21167%
vertical38,63918%
iron condor11,1975%
butterfly6,7483%
ratio vertical2,6161%
condor or box2,4121%
straddle1,284<1%
other multi-leg6,9673%

How these are counted

Every SPX and SPXW option print of the session, from the options tape, summed per contract. Premium is each print's price times its size times 100, added up. Open interest is the count published before the open (the morning open interest), so Vol/OI is the day's volume against the contracts that were open when it began, shown only where that open interest is 50 or more. Unusual Vol/OI ranks contracts with at least 1,000 contracts traded. Multi-leg is the share of a contract's volume that printed together with other legs at the same timestamp, grouped and named by shape the way the order ledger names them. Every number is a count of contracts or of dollars; none of them carries a side or a direction.