How this calculator works
Apply a new-for-old share ratio to a holding and adjust the theoretical price inversely. A 3-for-2 split creates 1.5 shares for each old share; a 1-for-10 reverse split combines ten shares into one. Fractional entitlements are shown rather than rounded because issuer cash-in-lieu policies vary.
Formula
New shares = old shares × new ratio / old ratio. Theoretical new price = old price × old ratio / new ratio. Total holding value remains old shares × old price.
Worked example
A 3-for-2 split turns 100 shares at $60 into 150 shares at $40, preserving $6,000 theoretical value. A 1-for-10 reverse split turns 25 shares at $8 into 2.5 shares at $80.
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Frequently asked questions
Does a split create profit?
Changing the number of shares alone does not change the theoretical holding value. Trading prices can move for other reasons.
What happens to fractions?
The calculator shows the mathematical entitlement. The issuer may pay cash instead of issuing fractional shares.
Can this calculate a reverse split?
Yes. Enter a smaller new-share numerator, such as 1 new share for 10 old shares.