DCI · DONALDSON Co INC

Track DCI — free

$95.95 +0.24 (+0.25%) At close · Aug 14

Market Cap

$11.12B

115.91M

Options Chain

Underlying $95.95 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 6 days to expiry · 40 contracts · mixed snapshot sessions · Jan 16, 2026–Aug 14, 2026; 14 unknown

Put / call OI

—

dated and unknown snapshot sessions

Open interest

—

dated and unknown snapshot sessions

Volume

—

dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 6d Sep 18 34d Nov 20 97d Feb 19 188d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	—	—	—		—	-0.026	278.8%	—	0
Call · $50 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $50 Snapshot session Unknown Last — Breakeven — Implied vol 278.8% Delta -0.026 ≈3% ITM Gamma 0.002 Theta -0.166 Vega 0.009 Open interest 0 Model this put
0	—	—	—	—		—	-0.03	242.4%	—	0
Call · $55 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $55 Snapshot session Unknown Last — Breakeven — Implied vol 242.4% Delta -0.03 ≈3% ITM Gamma 0.002 Theta -0.162 Vega 0.01 Open interest 0 Model this put
3	5	—	—	$35.70		—	-0.035	209.3%	—	0
Call · $60 In the money Snapshot session Aug 14, 2026 Last $35.70 Breakeven $95.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this call Put · $60 Snapshot session Unknown Last — Breakeven — Implied vol 209.3% Delta -0.035 ≈3% ITM Gamma 0.003 Theta -0.157 Vega 0.01 Open interest 0 Model this put
1	2	—	—	$22.08		$0.60	-0.041	178.9%	1	17
Call · $65 In the money Snapshot session Mar 17, 2026 Last $22.08 Breakeven $87.08 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $65 Snapshot session May 1, 2026 Last $0.60 Breakeven $64.40 Implied vol 178.9% Delta -0.041 ≈4% ITM Gamma 0.004 Theta -0.152 Vega 0.011 Open interest 17 Model this put
91	95	—	—	$25.70		$0.59	-0.048	150.9%	1	12
Call · $70 In the money Snapshot session Aug 14, 2026 Last $25.70 Breakeven $95.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest 91 Model this call Put · $70 Snapshot session Jun 17, 2026 Last $0.59 Breakeven $69.41 Implied vol 150.9% Delta -0.048 ≈5% ITM Gamma 0.005 Theta -0.147 Vega 0.011 Open interest 12 Model this put
18	40	—	—	$20.70		$0.30	-0.057	124.9%	4	19
Call · $75 In the money Snapshot session Aug 14, 2026 Last $20.70 Breakeven $95.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest 18 Model this call Put · $75 Snapshot session Jul 10, 2026 Last $0.30 Breakeven $74.70 Implied vol 124.9% Delta -0.057 ≈6% ITM Gamma 0.007 Theta -0.142 Vega 0.012 Open interest 19 Model this put
59	60	—	—	$15.70		$0.63	-0.063	93.5%	2	51
Call · $80 In the money Snapshot session Aug 14, 2026 Last $15.70 Breakeven $95.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest 59 Model this call Put · $80 Snapshot session Aug 3, 2026 Last $0.63 Breakeven $79.37 Implied vol 93.5% Delta -0.063 ≈6% ITM Gamma 0.01 Theta -0.114 Vega 0.021 Open interest 51 Model this put
8	1	—	—	$10.63		$1.52	-0.093	71%	2	20
Call · $85 In the money Snapshot session Aug 14, 2026 Last $10.63 Breakeven $95.63 Implied vol — Delta — Gamma — Theta — Vega — Open interest 8 Model this call Put · $85 Snapshot session Jul 22, 2026 Last $1.52 Breakeven $83.48 Implied vol 71% Delta -0.093 ≈9% ITM Gamma 0.018 Theta -0.116 Vega 0.021 Open interest 20 Model this put
19	1	—	—	$5.77		$0.60	-0.137	45.4%	1	65
Call · $90 In the money Snapshot session Aug 14, 2026 Last $5.77 Breakeven $95.77 Implied vol — Delta — Gamma — Theta — Vega — Open interest 19 Model this call Put · $90 Snapshot session Aug 3, 2026 Last $0.60 Breakeven $89.40 Implied vol 45.4% Delta -0.137 ≈14% ITM Gamma 0.038 Theta -0.098 Vega 0.033 Open interest 65 Model this put
109	5	21.8%	0.644	$1.92		$4.46	-0.397	31.8%	1	7
Call · $95 In the money Snapshot session Aug 12, 2026 Last $1.92 Breakeven $96.92 Implied vol 21.8% Delta 0.644 ≈64% ITM Gamma 0.135 Theta -0.084 Vega 0.051 Open interest 109 Model this call Put · $95 Snapshot session Jul 30, 2026 Last $4.46 Breakeven $90.54 Implied vol 31.8% Delta -0.397 ≈40% ITM Gamma 0.095 Theta -0.119 Vega 0.051 Open interest 7 Model this put
Underlying $95.95
104	3	32.9%	0.184	$0.55		$12.20	-0.763	41.6%	7	8
Call · $100 Snapshot session Aug 11, 2026 Last $0.55 Breakeven $100.55 Implied vol 32.9% Delta 0.184 ≈18% ITM Gamma 0.063 Theta -0.087 Vega 0.035 Open interest 104 Model this call Put · $100 In the money Snapshot session Apr 24, 2026 Last $12.20 Breakeven $87.80 Implied vol 41.6% Delta -0.763 ≈76% ITM Gamma 0.059 Theta -0.124 Vega 0.035 Open interest 8 Model this put
52	1	55.6%	0.122	$0.36		$19.40	-0.797	75.7%	2	1
Call · $105 Snapshot session Jul 24, 2026 Last $0.36 Breakeven $105.36 Implied vol 55.6% Delta 0.122 ≈12% ITM Gamma 0.028 Theta -0.111 Vega 0.024 Open interest 52 Model this call Put · $105 In the money Snapshot session Mar 17, 2026 Last $19.40 Breakeven $85.60 Implied vol 75.7% Delta -0.797 ≈80% ITM Gamma 0.029 Theta -0.206 Vega 0.036 Open interest 1 Model this put
42	2	66.5%	0.068	$0.11		—	-0.833	98.7%	—	0
Call · $110 Snapshot session Aug 4, 2026 Last $0.11 Breakeven $110.11 Implied vol 66.5% Delta 0.068 ≈7% ITM Gamma 0.015 Theta -0.086 Vega 0.014 Open interest 42 Model this call Put · $110 In the money Snapshot session Unknown Last — Breakeven — Implied vol 98.7% Delta -0.833 ≈83% ITM Gamma 0.02 Theta -0.238 Vega 0.037 Open interest 0 Model this put
2	1	95.2%	0.087	$0.25		$21.92	-0.901	99.5%	22	0
Call · $115 Snapshot session May 15, 2026 Last $0.25 Breakeven $115.25 Implied vol 95.2% Delta 0.087 ≈9% ITM Gamma 0.013 Theta -0.148 Vega 0.025 Open interest 2 Model this call Put · $115 In the money Snapshot session Mar 3, 2026 Last $21.92 Breakeven $93.08 Implied vol 99.5% Delta -0.901 ≈90% ITM Gamma 0.014 Theta -0.164 Vega 0.025 Open interest 0 Model this put
50	50	108.8%	0.071	$1.50		—	-0.87	136.7%	—	0
Call · $120 Snapshot session Jan 28, 2026 Last $1.50 Breakeven $121.50 Implied vol 108.8% Delta 0.071 ≈7% ITM Gamma 0.01 Theta -0.146 Vega 0.015 Open interest 50 Model this call Put · $120 In the money Snapshot session Unknown Last — Breakeven — Implied vol 136.7% Delta -0.87 ≈87% ITM Gamma 0.012 Theta -0.279 Vega 0.025 Open interest 0 Model this put
4	3	122.8%	0.064	$2.15		$23.94	-0.93	126.8%	4	0
Call · $125 Snapshot session Feb 24, 2026 Last $2.15 Breakeven $127.15 Implied vol 122.8% Delta 0.064 ≈6% ITM Gamma 0.008 Theta -0.151 Vega 0.015 Open interest 4 Model this call Put · $125 In the money Snapshot session Jan 16, 2026 Last $23.94 Breakeven $101.06 Implied vol 126.8% Delta -0.93 ≈93% ITM Gamma 0.008 Theta -0.161 Vega 0.015 Open interest 0 Model this put
0	—	136.4%	0.059	—		—	-0.936	140.4%	—	0
Call · $130 Snapshot session Unknown Last — Breakeven — Implied vol 136.4% Delta 0.059 ≈6% ITM Gamma 0.007 Theta -0.156 Vega 0.015 Open interest 0 Model this call Put · $130 In the money Snapshot session Unknown Last — Breakeven — Implied vol 140.4% Delta -0.936 ≈94% ITM Gamma 0.007 Theta -0.166 Vega 0.015 Open interest 0 Model this put
0	—	149.4%	0.055	—		—	-0.94	153.5%	—	0
Call · $135 Snapshot session Unknown Last — Breakeven — Implied vol 149.4% Delta 0.055 ≈5% ITM Gamma 0.006 Theta -0.161 Vega 0.016 Open interest 0 Model this call Put · $135 In the money Snapshot session Unknown Last — Breakeven — Implied vol 153.5% Delta -0.94 ≈94% ITM Gamma 0.006 Theta -0.171 Vega 0.016 Open interest 0 Model this put
0	—	162%	0.051	—		—	-0.944	166.1%	—	0
Call · $140 Snapshot session Unknown Last — Breakeven — Implied vol 162% Delta 0.051 ≈5% ITM Gamma 0.005 Theta -0.166 Vega 0.016 Open interest 0 Model this call Put · $140 In the money Snapshot session Unknown Last — Breakeven — Implied vol 166.1% Delta -0.944 ≈94% ITM Gamma 0.005 Theta -0.176 Vega 0.016 Open interest 0 Model this put
63	1	174.1%	0.048	$0.05		—	-0.947	178.2%	—	0
Call · $145 Snapshot session Aug 10, 2026 Last $0.05 Breakeven $145.05 Implied vol 174.1% Delta 0.048 ≈5% ITM Gamma 0.004 Theta -0.171 Vega 0.016 Open interest 63 Model this call Put · $145 In the money Snapshot session Unknown Last — Breakeven — Implied vol 178.2% Delta -0.947 ≈95% ITM Gamma 0.005 Theta -0.181 Vega 0.016 Open interest 0 Model this put

About this data

Each contract's last price, volume, greeks, implied volatility and open interest belongs to the snapshot session shown in its details; unknown means the provider omitted the timestamp. This chain has mixed snapshot sessions · Jan 16, 2026–Aug 14, 2026; 14 unknown. Cross-contract positioning totals are shown only when every returned row has the same known session. 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.

Key facts CIK 29644 CUSIP 257651109 13F (30d) 595 filings 565 filers Visit website Investor relations