MSB · Mesabi Trust

Track MSB — free Ask ALVIS about MSB

$22.28 -0.14 (-0.62%) At close · Jul 27

Market Cap

$295.20M

13.12M

Options Chain

15-min delayed Underlying $22.28 · today Options Calculator

Positioning

Aug 21, 2026 · 24 days to expiry · 16 contracts

Put / call OI

0.05

Call-heavy positioning

Open interest

contracts outstanding

Volume

traded today

Max pain

$25.00

$2.72 above spot

ATM implied vol

57.6%

market's expected move

Open interest by strike

Calls Puts

12.5

17.5

22.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 24d Sep 18 52d Dec 18 143d Mar 19 234d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	110.8%	0.988	—		—	—	—	—	0
Call · $12.5 In the money Last — Breakeven — Implied vol 110.8% Delta 0.988 ≈99% ITM Gamma 0.006 Theta -0.003 Vega 0.002 Open interest 0 Model this call Put · $12.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $15 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $15 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	76.2%	0.918	—		—	-0.128	98.1%	—	0
Call · $17.5 In the money Last — Breakeven — Implied vol 76.2% Delta 0.918 ≈92% ITM Gamma 0.034 Theta -0.013 Vega 0.009 Open interest 0 Model this call Put · $17.5 Last — Breakeven — Implied vol 98.1% Delta -0.128 ≈13% ITM Gamma 0.036 Theta -0.025 Vega 0.014 Open interest 0 Model this put
0	—	58.3%	0.812	—		—	-0.204	64.5%	—	0
Call · $20 In the money Last — Breakeven — Implied vol 58.3% Delta 0.812 ≈81% ITM Gamma 0.079 Theta -0.018 Vega 0.015 Open interest 0 Model this call Put · $20 Last — Breakeven — Implied vol 64.5% Delta -0.204 ≈20% ITM Gamma 0.076 Theta -0.022 Vega 0.015 Open interest 0 Model this put
Underlying $22.28
0	—	60.4%	0.544	—		$1.25	-0.456	54.8%	2	3
Call · $22.5 Last — Breakeven — Implied vol 60.4% Delta 0.544 ≈54% ITM Gamma 0.113 Theta -0.029 Vega 0.023 Open interest 0 Model this call Put · $22.5 In the money Last $1.25 Breakeven $21.25 Implied vol 54.8% Delta -0.456 ≈46% ITM Gamma 0.124 Theta -0.026 Vega 0.023 Open interest 3 Model this put
6	7	67.3%	0.315	$0.45		$1.75	-0.779	45.9%	1	1
Call · $25 Last $0.45 Breakeven $25.45 Implied vol 67.3% Delta 0.315 ≈32% ITM Gamma 0.09 Theta -0.028 Vega 0.021 Open interest 6 Model this call Put · $25 In the money Last $1.75 Breakeven $23.25 Implied vol 45.9% Delta -0.779 ≈78% ITM Gamma 0.11 Theta -0.016 Vega 0.016 Open interest 1 Model this put
0	—	97%	0.157	—		—	-0.851	93.4%	—	0
Call · $30 Last — Breakeven — Implied vol 97% Delta 0.157 ≈16% ITM Gamma 0.043 Theta -0.028 Vega 0.012 Open interest 0 Model this call Put · $30 In the money Last — Breakeven — Implied vol 93.4% Delta -0.851 ≈85% ITM Gamma 0.042 Theta -0.026 Vega 0.012 Open interest 0 Model this put
80	80	128%	0.127	$0.01		—	—	—	—	0
Call · $35 Last $0.01 Breakeven $35.01 Implied vol 128% Delta 0.127 ≈13% ITM Gamma 0.027 Theta -0.032 Vega 0.013 Open interest 80 Model this call Put · $35 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 65172 CUSIP 590672101 13F (30d) 12 filings 12 filers Visit website Investor relations