RiverNorth Short Prime Unicorn Fund I, Inc AMT + ISO Calculator
Calculator · free · no signup · pre-IPOPlan your RiverNorth Short Prime Unicorn Fund I, Inc ISO exercise around the AMT bargain element from current trading price.
Beta · invite-only · AlphaLatitude Inc. · Free Tools
Your grant
Tax inputs
Grant timeline
Net final value at year 3 sale — optimized plan
$242,783
After-tax dollars at end of year 3, net of all federal + state taxes through the sale.
This year: exercise 2,640 shares (of 10,000 total).
= gross gain at sale − federal + state LTCG − AMT premium above baseline regular tax (time-valued)
AMT premium for exercising: $90,254 (on top of $228,434 regular tax across the horizon)
Optimized plan keeps $57,102 more than lump-sum, $796 more than even split.
Federal AMT crossover this year: 1,271 shares ($57,238 bargain element). Above that, each additional share this year adds federal AMT.
Estimates only. Not financial advice.
Net final value by year
Running tally: NTV from shares exercised through year y, minus AMT premium paid through year y. The last year matches the plan's headline NTV. Hover a year for plan totals.
Optimized exercise schedule
You pay the higher of Regular tax and Tentative AMT per jurisdiction, then subtract Credit recovered. The result is Net tax. Hover any number for the bracket-by-bracket breakdown.
| 1 | 2,640 | |||
| 2 | 2,567 | |||
| 3 | 4,793 |
Federal AMT credit
Earned
$80,681
Recovered
$0
Remaining
$80,681
The AMT credit only recovers in years where regular tax exceeds AMT — typically a year with no ISO exercise. Every year in this schedule has bargain element, so AMT exceeds regular tax in every year and the credit carries forward untouched. Try a longer horizon or fewer total shares to introduce a recovery year.
Plan comparison
Net value at the end of your hold horizon.
Lump-sum
All in Year 1
$185,681
−$57,102
Even split
Equal shares each year
$241,987
−$796
Optimized
Tax-aware schedule
$242,783
Highest
Estimates only. Excludes disqualifying dispositions, NSOs, multi-state moves, and AMT preferences other than ISO bargain elements. Long-term capital gains tax assumes a qualifying disposition (ISO held ≥1 yr from exercise and ≥2 yr from grant); state LTCG follows ordinary brackets except where the state grants preferential treatment (HI, ND, SC, WI, AR, NM) or has a dedicated LTCG-only tax (WA). Assumes you are within the $100K ISO limit (any portion of an annual ISO grant whose FMV at grant exceeds $100K is treated as NSO from the start, §422(d)). State AMT figures are 2025 (next-year values published in late 2026). Not financial advice.
QSBS note. If your shares qualify (typically pre-IPO C-corp grants held 5+ years), a federal rule lets you exclude up to $10M of gain on a future sale from federal tax. That single rule shifts exercise-timing math more than AMT does. (This is §1202 “qualified small-business stock”.) Modeled in beta, not here.
You optimized one grant in isolation. The beta optimizes ISOs alongside your RSUs, NSOs, and stock in one plan.
Request beta access →About RiverNorth Short Prime Unicorn Fund I, Inc
RiverNorth Short Prime Unicorn Fund I, Inc is a public Other company, incorporated in Maryland and headquartered in West Palm Beach, FL. IPO'd Jun 8, 2026.
Equity grants at RiverNorth Short Prime Unicorn Fund I, Inc typically include incentive stock options (ISOs), non-qualified stock options (NSOs), and restricted stock units (RSUs).
RiverNorth Short Prime Unicorn Fund I, Inc. is a non-diversified, closed-end management investment company organized in Maryland and listed on the NYSE under the ticker UNID. Advised by RiverNorth Capital Management (founded 2000, West Palm Beach, $5.2 billion in assets under management as of September 2024), the fund uses swap agreements to deliver the inverse (-100%) of the returns of the companion Long Fund's exposure to the Prime Unicorn 30 Index, a rules-based benchmark tracking the 30 largest U.S. venture-backed private companies by valuation. The fund is structured as a term-limited vehicle, scheduled to terminate roughly 24 months after its prospectus date, and is designed as a hedging instrument against long exposure to late-stage private-market valuations.
Sources: sec.gov · rivernorth.com
Equity comp at RiverNorth Short Prime Unicorn Fund I, Inc
- RiverNorth Short Prime Unicorn Fund I, Inc. is a closed-end management investment company, not a technology operating company. It does not grant RSUs or equity compensation to employees. The fund uses swap agreements to deliver the inverse (-100%) of the returns of the companion Long Fund's exposure to the Prime Unicorn 30 Index, making it primarily a hedging instrument against long exposure to late-stage private-market valuations. It is a term-limited vehicle scheduled to terminate roughly 24 months after its prospectus date.
Sources: sec.gov
Researched 2026-06-10.
OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by RiverNorth Short Prime Unicorn Fund I, Inc.
Use this calculator to plan a RiverNorth Short Prime Unicorn Fund I, Inc ISO exercise around the AMT bargain element from the current trading price. The math accounts for federal AMT, state AMT (CA, CO, CT, MN where applicable), AMT crossover, and year-over-year credit recovery. Inputs are yours: strike price, share count, FMV at exercise, and your filing-status income.
All RiverNorth Short Prime Unicorn Fund I, Inc tools → · Use the generic AMT + ISO Exercise Calculator for any company.
RiverNorth Short Prime Unicorn Fund I, Inc equity questions
- How much alternative minimum tax (AMT) will I owe exercising RiverNorth Short Prime Unicorn Fund I, Inc ISOs?
- Exercising incentive stock options (ISOs) does not create regular income tax, but the bargain element (the fair market value at exercise minus your strike price) counts toward the alternative minimum tax (AMT). The amount depends on the bargain element, your other income, your filing status, and your state. The calculator above models federal and state AMT, the AMT crossover point, and how the credit recovers in later years for your exact RiverNorth Short Prime Unicorn Fund I, Inc figures.
- Does RiverNorth Short Prime Unicorn Fund I, Inc grant ISOs, NSOs, or RSUs?
- Equity compensation at RiverNorth Short Prime Unicorn Fund I, Inc typically takes the form of incentive stock options (ISOs), non-qualified stock options (NSOs), and restricted stock units (RSUs). Incentive stock options can trigger the alternative minimum tax (AMT) when you exercise. Restricted stock units are taxed as ordinary income when they vest.
- When did the RiverNorth Short Prime Unicorn Fund I, Inc IPO lockup expire?
- RiverNorth Short Prime Unicorn Fund I, Inc went public on June 8, 2026. The standard post-IPO lockup runs 180 days, so employee and insider shares generally became sellable around December 5, 2026. Confirm against your own grant paperwork, since some lockups release early or in stages.
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