Reverse Stock Split Calculator – Free Share & Price Impact Tool

What Is a Reverse Stock Split?

A reverse stock split reduces the number of a company’s outstanding shares while proportionally increasing the price per share, leaving the total value of your holding unchanged (aside from any market reaction to the news itself). A 1-for-10 reverse split means every 10 old shares become 1 new share, and the price multiplies by 10. It’s the mirror image of a regular (“forward”) stock split, which increases share count and lowers price.

Why Do Companies Do Reverse Stock Splits?

• Avoiding delisting: Nasdaq and NYSE both require a minimum bid price, typically $1.00. If a stock trades below that for 30 consecutive trading days, the exchange can start delisting proceedings. A reverse split is the fastest way to push the price back above the threshold.
• Attracting institutional investors: Many mutual funds and institutions have rules against holding stocks under a certain price (often $5 or $10), so a higher nominal share price can widen the pool of potential buyers.
• Improving perception: A higher per-share price can look less like a “penny stock,” even though nothing about the underlying business has changed.

Worth knowing: a reverse split doesn’t fix the underlying business problem that caused the price to fall. Data on reverse splits shows that, on average, companies that do them have continued to underperform the broader market in the months afterward. The split itself is neutral — what matters is why the price fell in the first place.

Real Reverse Stock Splits in 2026

Here are several reverse splits that actually took effect in 2026, based on SEC and Nasdaq filings — including four that happened in just the first two weeks of September:

Source: SEC filings (Forms 8-K/10-Q) and Nasdaq/GlobeNewswire announcements. Most were done to regain compliance with exchange minimum-bid-price rules — BioRestorative’s, for instance, cut its share count from about 27.6 million down to roughly 1.4 million.

A well-known older example: General Electric completed a 1-for-8 reverse split in 2021, consolidating roughly 8.7 billion shares into about 1.1 billion as part of a broader restructuring — a rare case of a large, established company using a reverse split rather than a distressed micro-cap.

Worked Examples by Common Ratio

Starting example: 1,000 shares at $2.00 per share ($2,000 total value).

Try your own numbers in the calculator above — it works the same way for any ratio and starting position.

Fractional Shares and Cash-in-Lieu

If your share count doesn’t divide evenly into the split ratio, you end up with a fractional share. Most companies don’t issue fractional shares — your broker instead pays you cash for the fraction at the post-split market price (“cash-in-lieu”). For example, in a real 2026 case, one company’s reverse split left shareholders with 55.33336 fractional shares in total, which were cashed out for $267 combined.

Effect on Your Cost Basis (For Taxes)

A reverse split doesn’t create a taxable event by itself, but it does change your per-share cost basis for future capital gains calculations. Your total cost basis stays the same — it’s just spread over fewer shares.

Example: You bought 1,000 shares for $5,000 total ($5.00/share basis). After a 1-for-10 reverse split, you hold 100 shares, and your basis becomes $50.00/share — still $5,000 total. Keep your original purchase records; your broker’s 1099-B may not automatically reflect the adjusted per-share basis.

Frequently Asked Questions

Does a reverse stock split change how much my shares are worth?
No — your total holding value is unchanged by the mechanics of the split itself (though the stock’s price can move afterward for unrelated reasons).

Is a reverse stock split good or bad for investors?
Mechanically neutral, but often a signal that a company’s share price has fallen sharply enough to risk delisting — worth investigating why before assuming it’s routine.

What is a common reverse stock split ratio?
1-for-2 through 1-for-20 are most common, though more distressed stocks sometimes do 1-for-50 or even 1-for-100+.

Do options and warrants get adjusted too?
Yes — strike prices and the number of shares per contract are adjusted proportionally by the options clearinghouse (OCC) so the total value is preserved.

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