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State Street SPDR S&P MIDCAP MDY 668.34 1.66 0.25%

MDY Gamma Exposure (GEX)

MDY (State Street SPDR S&P MIDCAP): See how call and put gamma exposure is distributed across option strikes. Free delayed preview.

Previous-day view · Mon Sep 21 close. You are previewing the previous trading day. Subscribe to see today live and every other date — plans start at Delta, $39/mo. Sign up Sign in
ATM IV
0.135
Put Call Ratio (OI)
6.7
Put Call Ratio (Vol)
6.89
IV Rank
0
IV Percentile
0
Max Pain
680

Gamma exposure (2026-09-21)

GEX estimates dealer hedging flow at each strike.

Positive GEX = dealers are long gamma; they buy the dip and sell the rip, dampening volatility. Negative GEX = dealers are short gamma; they sell the dip and buy the rip, amplifying volatility.

DTE \text{DTE}
25.0
452.0
| Δ | |\Delta|
0.00
1.00
Moneyness Moneyness
-391.1
391.1
View values by strike
MDY · Gamma exposure · 2026-09-21. USD of exposure per 1% underlying move.
StrikeCallsPuts
330.00 0 -84
345.00 890 0
360.00 0 -111
370.00 0 -322 K
375.00 0 -136 K
380.00 0 -127 K
400.00 0 -76.2 K
405.00 0 -898
410.00 151 -739
420.00 1.59 K -127 K
430.00 0 -492 K
435.00 187 0
440.00 385 0
450.00 0 -251 K
460.00 240 -128 K
465.00 249 0
475.00 0 -275 K
480.00 281 -452 K
485.00 305 -7.77 K
500.00 9.21 K -170 K
510.00 0 -872
515.00 0 -824
520.00 1.81 K -1.21 M
525.00 498 -111 K
530.00 1.08 K -934 K
535.00 0 -12.4 K
540.00 2.28 K -1.27 K
545.00 1.21 K 0
550.00 1.26 K -889 K
555.00 2.07 K 0
560.00 2.23 K -2.86 M
565.00 0 -703
570.00 7.82 K -594 K
575.00 0 -1 M
580.00 21 K -1.18 M
585.00 1.06 K -5.17 K
590.00 0 -1.21 M
595.00 7.36 K -17.8 K
600.00 2.66 K -4.27 M
605.00 0 -290 K
610.00 13.7 K -1.32 K
615.00 9.17 K -1.75 K
620.00 28 K -342 K
625.00 88.6 K -403 K
630.00 10.9 K -7.1 M
635.00 23.9 K -3.59 K
640.00 581 K -652 K
645.00 111 K -42.4 K
650.00 45.7 K -726 K
655.00 1.92 M -2.7 M
660.00 308 K -4.22 M
665.00 213 K -217 K
670.00 202 K -2.13 M
675.00 705 K -4.37 M
680.00 248 K -2.53 M
685.00 45.3 K -40.2 K
690.00 982 K -516 K
695.00 105 K -334 K
700.00 265 K -1.36 M
705.00 122 K -7.07 K
710.00 111 K -568 K
715.00 188 K 0
720.00 1.96 M -383 K
725.00 357 K -208 K
730.00 158 K -794 K
735.00 4.25 K -822 K
740.00 25.4 K -828 K
745.00 15.8 K -838 K
750.00 399 K 0
755.00 6.68 K 0
760.00 288 K 0
765.00 1.26 K 0
770.00 42.2 K 0
775.00 18.7 K 0
780.00 76.4 K 0
785.00 650 0
790.00 7.9 K 0
795.00 20.5 K 0
800.00 456 K 0
805.00 1.49 K 0
810.00 25.2 K 0
815.00 24.7 K 0
820.00 70.8 K 0
825.00 84.5 K 0
830.00 11.8 K 0
835.00 4.04 K 0
845.00 358 0
850.00 50.1 K 0
860.00 771 0
865.00 726 0
870.00 2.41 K 0
885.00 10.6 K 0
890.00 810 0
895.00 787 0
900.00 5.72 K 0
910.00 1.88 K 0
920.00 732 0
925.00 15.1 K 0
930.00 409 0
940.00 785 0
950.00 417 0
955.00 405 0
965.00 345 0
980.00 636 0
995.00 285 0
1000.00 1.13 K 0
1010.00 1.13 K 0