As an example of how reverse splits work, ProShares Ultrashort Silver (ZSL) underwent a 1-10 reverse split on April 15, 2010, which grouped every 10 shares into one share; accordingly, this multiplied the close price by 10, so the stock finished at $36.45 instead of $3.645.

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How do you read "1-10" in the sentence above?
1. one to ten
2. one dash ten
3. one hyphen ten
4. one ten

#1 or #4, but I'd say #1.

We'd never pronounce "dash" or "hyphen" in reading any of these number combinations.