OI update signal: Not confirmed MSFT / AAPL · Checked Oct 23, 09:56 EDT
The latest collection has not completed. Some symbols may not be updated yet.
View affected symbolsAADX,AAMI,AAP,ABAT,ABCB,ABEO,ABG,ABM,ABOS,ABSI,ABTC,ABUS,ABVC,ACB,ACET,ACH,ACHC,ACLS,ACMR,ACNB,ACOG,ACRS,ACTG,ADIG,ADTN,ADUR,ADUS,AER,AESI,AEXA,AFCG,AGEN,AGI,AGIO,AGL,AGNT,AGYS,AHRT,AIFC,AIFU,AIP,AIRJ,AIRO,AIRS,AKBA,ALC,ALDX,ALEC,ALGT,ALH,ALKS,ALKT,ALLO,ALLT,ALMS,ALNY,ALT,ALTI,ALTO,AMAL,AMBA,AMBQ,AMCX,AMPG,AMPL,AMPY,AMR,AMRC,AMRZ,AMTM,AMTX,ANAB,ANGI,ANGO,ANGX,ANIK,ANIP,ANIX,ANNX,ANRO,ANVS,AOSL,APEI,APLE,APOG,ARAY,ARCO,ARDT,ARDX,AREC,ARIS,ARLO,AROC,AROW,ARQ,ARTV,ARX,ARXS,ASAN,ASC,ASLE,ASMB,ASO,ASPN,ASTE,ASTH,ASTI,ASTL,ASUR,ASYS,ATEC,ATEN,ATLO,ATNI,ATRC,ATRO,AU,AUDC,AUGO,AUPH,AVAH,AVBC,AVPT,AVR,AWI,AWR,AWRE,AXGN,AXSM,AYA,AZ,BANC,BAND,BANF,BBD,BBVA,BCPC,BCSF,BKKT,BLZE,BMI,BMO,BMRC,BNS,BSBR,BUSE,CENN,COLD,CUE,DDD,DOX,DRTS,EZPW,FAC,FATE,FBIO,FBNC,FCBC,FDMT,FDXF,FELE,FER,FERG,FFBC,FHTX,FIRY,FISI,FLD,FLL,FLNA,FLNG,FLOC,FLUT,FLWS,FLY,FMAO,FMBH,FMNB,FNLC,FORM,FORR,FOSL,FPH,FRHC

EFC

Daily option chain

Daily open interest

vs Oct 20, 2026

Saved stock price: $11.65 · Expirations before Oct 23, 2026 hidden automatically.

ITM In the money Unshaded: out of the money ATM Strike equals stock price Based on the saved stock price
80 contracts / 4 expirationsClick OI for history
Nov 20, 2026EXPIRATION20 contracts / 10 strikes
SAVED STOCK PRICE$11.65Nearest ATM strike $12.50
Jump to ATM
EFC option chain expiring 2026-11-20, open interest on 2026-10-23 compared with 2026-10-20
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
7 12In the money +5 0.00% 2.50 0 0 0New 698.08%
1 3In the money +2 162.68% 5.00 0 0 0New 291.66%
1 1In the money 0 0.00% 7.50 0 0 0New 175.39%
0 0In the money 0New 0.00% 10.00 5 7 +2 38.61%
STOCK PRICE $11.65
2,062 2,062 0 24.05% 12.50NEAREST ATM 33 56In the money +23 0.00%
0 0 0New 50.68% 15.00 0 0In the money 0New 79.42%
0 0 0New 73.74% 17.50 5 5In the money 0 113.54%
0 0 0New 189.24% 20.00 0 0In the money 0New 138.31%
0 0 0New 182.87% 22.50 0 0In the money 0New 159.23%
0 0 0New 201.38% 25.00 0 0In the money 0New 177.38%
Dec 18, 2026EXPIRATION20 contracts / 10 strikes
SAVED STOCK PRICE$11.65Nearest ATM strike $12.50
Jump to ATM
EFC option chain expiring 2026-12-18, open interest on 2026-10-23 compared with 2026-10-20
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
3 10In the money +7 247.80% 2.50 2 2 0 334.12%
2 2In the money 0 134.19% 5.00 20 20 0 210.99%
0 0In the money 0New 0.00% 7.50 24 24 0 126.51%
81 81In the money 0 0.00% 10.00 2,064 2,064 0 43.60%
STOCK PRICE $11.65
2,564 3,277 +713 24.99% 12.50NEAREST ATM 1,263 1,263In the money 0 29.02%
2,405 2,405 0 37.19% 15.00 209 209In the money 0 59.07%
409 409 0 53.61% 17.50 8 8In the money 0 72.25%
14 14 0 67.01% 20.00 2 2In the money 0 90.16%
0 0 0New 143.17% 22.50 2 2In the money 0 96.97%
0 0 0New 156.82% 25.00 54 54In the money 0 119.52%
Jan 15, 2027EXPIRATION20 contracts / 10 strikes
SAVED STOCK PRICE$11.65Nearest ATM strike $12.50
Jump to ATM
EFC option chain expiring 2027-01-15, open interest on 2026-10-23 compared with 2026-10-20
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
3 6In the money +3 0.00% 2.50 2 2 0 297.43%
0 0In the money 0New 125.14% 5.00 0 0 0New 170.55%
0 0In the money 0New 0.00% 7.50 1 1 0 102.38%
30 32In the money +2 53.92% 10.00 163 163 0 31.20%
STOCK PRICE $11.65
152 152 0 19.44% 12.50NEAREST ATM 85 85In the money 0 26.42%
182 184 +2 29.82% 15.00 0 0In the money 0New 58.00%
1 1 0 85.94% 17.50 3 3In the money 0 74.86%
0 0 0New 103.31% 20.00 0 0In the money 0New 91.46%
0 0 0New 114.69% 22.50 1 1In the money 0 96.72%
0 0 0New 125.82% 25.00 0 0In the money 0New 103.46%
Apr 16, 2027EXPIRATION20 contracts / 10 strikes
SAVED STOCK PRICE$11.65Nearest ATM strike $12.50
Jump to ATM
EFC option chain expiring 2027-04-16, open interest on 2026-10-23 compared with 2026-10-20
CallsStrikePuts
Prev OIOpen interestChangeIVPrev OIOpen interestChangeIV
5 10In the money +5 0.00% 2.50 50 50 0 204.82%
0 0In the money 0New 0.00% 5.00 40 40 0 115.83%
0 0In the money 0New 0.00% 7.50 0 0 0New 67.79%
1 1In the money 0 53.96% 10.00 10 10 0 31.56%
STOCK PRICE $11.65
235 241 +6 23.83% 12.50NEAREST ATM 43 43In the money 0 0.00%
34 34 0 23.41% 15.00 6 6In the money 0 33.54%
3 3 0 36.74% 17.50 6 6In the money 0 44.79%
0 0 0New 44.94% 20.00 0 0In the money 0New 53.86%
0 0 0New 84.00% 22.50 0 0In the money 0New 55.95%
0 0 0New 86.13% 25.00 0 0In the money 0New 76.68%

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