ASX · ASE Technology Holding Co., Ltd.

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$31.85 -2.08 (-6.13%)

Market Cap

$74.44B

2.19B

Options Chain

15-min delayed Underlying $31.85 · today Options Calculator

Positioning

Aug 21, 2026 · 23 days to expiry · 30 contracts

Put / call OI

0.17

Call-heavy positioning

Open interest

42,005

contracts outstanding

Volume

1,251

traded today

Max pain

$37.50

$5.65 above spot

ATM implied vol

93.4%

market's expected move

Open interest by strike

Calls Puts

22.5

27.5

32.5

37.5

42.5

47.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 23d Sep 18 51d Dec 18 142d Jan 15 170d Mar 19 233d Jan 21 541d Dec 15 870d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
68	61	161.7%	0.913	$19.55		$0.10	-0.032	109.4%	2	229
Call · $20 In the money Last $19.55 Breakeven $39.55 Implied vol 161.7% Delta 0.913 ≈91% ITM Gamma 0.012 Theta -0.044 Vega 0.011 Open interest 68 Model this call Put · $20 Last $0.10 Breakeven $19.90 Implied vol 109.4% Delta -0.032 ≈3% ITM Gamma 0.008 Theta -0.014 Vega 0.006 Open interest 229 Model this put
0	—	144.3%	0.875	—		$0.34	-0.074	106.8%	2	35
Call · $22.5 In the money Last — Breakeven — Implied vol 144.3% Delta 0.875 ≈87% ITM Gamma 0.018 Theta -0.052 Vega 0.018 Open interest 0 Model this call Put · $22.5 Last $0.34 Breakeven $22.16 Implied vol 106.8% Delta -0.074 ≈7% ITM Gamma 0.016 Theta -0.026 Vega 0.012 Open interest 35 Model this put
1	1	134.3%	0.818	$13.80		$0.60	-0.139	103%	173	322
Call · $25 In the money Last $13.80 Breakeven $38.80 Implied vol 134.3% Delta 0.818 ≈82% ITM Gamma 0.025 Theta -0.063 Vega 0.024 Open interest 1 Model this call Put · $25 Last $0.60 Breakeven $24.40 Implied vol 103% Delta -0.139 ≈14% ITM Gamma 0.027 Theta -0.04 Vega 0.019 Open interest 322 Model this put
2	2	99.8%	0.768	$7.82		$1.12	-0.231	99.6%	72	54
Call · $27.5 In the money Last $7.82 Breakeven $35.32 Implied vol 99.8% Delta 0.768 ≈77% ITM Gamma 0.038 Theta -0.053 Vega 0.026 Open interest 2 Model this call Put · $27.5 Last $1.12 Breakeven $26.38 Implied vol 99.6% Delta -0.231 ≈23% ITM Gamma 0.038 Theta -0.053 Vega 0.026 Open interest 54 Model this put
11	4	96.4%	0.653	$4.20		$2.04	-0.346	96.3%	5	287
Call · $30 In the money Last $4.20 Breakeven $34.20 Implied vol 96.4% Delta 0.653 ≈65% ITM Gamma 0.048 Theta -0.063 Vega 0.031 Open interest 11 Model this call Put · $30 Last $2.04 Breakeven $27.96 Implied vol 96.3% Delta -0.346 ≈35% ITM Gamma 0.048 Theta -0.062 Vega 0.031 Open interest 287 Model this put
Underlying $31.85
25	27	93.8%	0.524	$2.85		$3.20	-0.476	93.1%	136	2.1k
Call · $32.5 Last $2.85 Breakeven $35.35 Implied vol 93.8% Delta 0.524 ≈52% ITM Gamma 0.053 Theta -0.066 Vega 0.032 Open interest 25 Model this call Put · $32.5 In the money Last $3.20 Breakeven $29.30 Implied vol 93.1% Delta -0.476 ≈48% ITM Gamma 0.054 Theta -0.065 Vega 0.032 Open interest 2.1k Model this put
141	9	92.7%	0.396	$1.86		$4.85	-0.6	94.7%	6	1.6k
Call · $35 Last $1.86 Breakeven $36.86 Implied vol 92.7% Delta 0.396 ≈40% ITM Gamma 0.052 Theta -0.064 Vega 0.029 Open interest 141 Model this call Put · $35 In the money Last $4.85 Breakeven $30.15 Implied vol 94.7% Delta -0.6 ≈60% ITM Gamma 0.052 Theta -0.064 Vega 0.029 Open interest 1.6k Model this put
459	23	93.9%	0.292	$1.30		$5.43	-0.717	90.9%	101	888
Call · $37.5 Last $1.30 Breakeven $38.80 Implied vol 93.9% Delta 0.292 ≈29% ITM Gamma 0.046 Theta -0.057 Vega 0.03 Open interest 459 Model this call Put · $37.5 In the money Last $5.43 Breakeven $32.07 Implied vol 90.9% Delta -0.717 ≈72% ITM Gamma 0.047 Theta -0.053 Vega 0.03 Open interest 888 Model this put
936	276	92.4%	0.203	$0.80		$7.80	-0.84	81.3%	1	419
Call · $40 Last $0.80 Breakeven $40.80 Implied vol 92.4% Delta 0.203 ≈20% ITM Gamma 0.038 Theta -0.046 Vega 0.024 Open interest 936 Model this call Put · $40 In the money Last $7.80 Breakeven $32.20 Implied vol 81.3% Delta -0.84 ≈84% ITM Gamma 0.038 Theta -0.034 Vega 0.024 Open interest 419 Model this put
16.6k	11	102.7%	0.165	$0.56		$10.60	-0.908	79.4%	2	104
Call · $42.5 Last $0.56 Breakeven $43.06 Implied vol 102.7% Delta 0.165 ≈16% ITM Gamma 0.03 Theta -0.045 Vega 0.025 Open interest 16.6k Model this call Put · $42.5 In the money Last $10.60 Breakeven $31.90 Implied vol 79.4% Delta -0.908 ≈91% ITM Gamma 0.027 Theta -0.021 Vega 0.016 Open interest 104 Model this put
1.8k	74	95.6%	0.097	$0.38		$11.00	-0.896	98%	2	136
Call · $45 Last $0.38 Breakeven $45.38 Implied vol 95.6% Delta 0.097 ≈10% ITM Gamma 0.022 Theta -0.029 Vega 0.017 Open interest 1.8k Model this call Put · $45 In the money Last $11.00 Breakeven $34.00 Implied vol 98% Delta -0.896 ≈90% ITM Gamma 0.023 Theta -0.029 Vega 0.017 Open interest 136 Model this put
11.9k	66	110.1%	0.098	$0.30		—	—	—	—	0
Call · $47.5 Last $0.30 Breakeven $47.80 Implied vol 110.1% Delta 0.098 ≈10% ITM Gamma 0.02 Theta -0.033 Vega 0.017 Open interest 11.9k Model this call Put · $47.5 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
3.1k	131	109.3%	0.07	$0.22		$13.00	—	—	5	6
Call · $50 Last $0.22 Breakeven $50.22 Implied vol 109.3% Delta 0.07 ≈7% ITM Gamma 0.015 Theta -0.025 Vega 0.01 Open interest 3.1k Model this call Put · $50 In the money Last $13.00 Breakeven $37.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 Model this put
660	33	117.2%	0.043	$0.15		$14.60	—	—	1	1
Call · $55 Last $0.15 Breakeven $55.15 Implied vol 117.2% Delta 0.043 ≈4% ITM Gamma 0.01 Theta -0.019 Vega 0.011 Open interest 660 Model this call Put · $55 In the money Last $14.60 Breakeven $40.40 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
79	25	130.6%	0.039	$0.10		—	—	—	—	0
Call · $60 Last $0.10 Breakeven $60.10 Implied vol 130.6% Delta 0.039 ≈4% ITM Gamma 0.008 Theta -0.019 Vega 0.006 Open interest 79 Model this call Put · $60 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. Bid and ask are not included on this plan.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1122411 CUSIP 00215W100 13F (30d) 156 filings 135 filers Visit website Investor relations