Tapeab.io
BETA
COST· Costco
Gamma exposure · dealer positioning

Expected Move

ATM-straddle implied move from delayed quotes — a market-implied range, not a forecast.

NearestSep 18
±$16.73 1.8%)
902.18935.64
MonthlySep 18
±$16.73 1.8%)
902.18935.64
QuarterlyDec 18
±$87.55 9.5%)
831.361,006.46
Spot
918.9
Call Wall
930
Put Wall
920
Zero Gamma
933.8
Net GEX ($M)
-4.3

Gamma exposure by strike ($M, per 1% move)

Call gammaPut gammaSpotNear EM1M EM3M EM
Near EM 935.6
Near EM 902.2
1M EM 935.6
1M EM 902.2
3M EM 1,006.5
3M EM 831.4
Spot 918.9
1,040
1,015
1,005
995
985
975
967.5
962.5
957.5
952.5
947.5
0.1
942.5
0.1
937.5
930
1.2
1.1
Call Wall
925
1.1
1.1
920
2.7
0.8
Put Wall
915
0.8
0.4
905
1.2
0.3
895
0.8
885
0.4
875
0.3
865
855
845
835
825
815
805
795
785
History

COST, night by night.

Where the gamma levels, the net position and the priced move have sat on every recorded session. Readings are as captured that evening, not restated later.

10 Jun → 14 Sep
Walls over price

Call wall, put wall and zero-gamma per session, with the spot they were computed against. Walls step between listed strikes. Spot is the session close as CBOE's delayed feed settled it.

spotcall wallput wallzero-gamma
Net GEX · all expiries

Net gamma in $M across every listed expiry. The figures on the profile above are the nearest expiry only, so the two do not match. Dashed line marks zero.

net gamma, $M · all expiries
Expected move · monthly
now 18 Sep

ATM-straddle implied move to the monthly expiry, % of spot. The line breaks at each roll to a new expiry — either side of a break prices a different contract. Rolled : 22 Jun, 20 Jul, 24 Aug.

implied move, % of spotroll to a new expiry

One reading per session, captured nightly after the close, 10 Jun → 14 Sep, over CBOE delayed (~15-min) chains, computed across the full listed chain. Gaps are weekends, holidays and sessions a capture missed; any reading can be absent on a session that was captured, and the series is broken rather than drawn through it.