TI SR-50

The SR-50 was Texas Instruments' first scientific pocket calculator with trigonometric and logarithm functions. If instead of buying the SR-50 on launch day, you had invested in TI stock, your shares would be worth an estimated $12,054 today (or $10,636 after fees).
Release Date15 January 1974
Release Price$169.95
Company (ticker)TI (NASDAQ: TXN)
Share Price (as of)USD 80.15 (19 August 2017)
Est. Value (with fees)$12,054 ($10,636)
Est. Return70.93x price, 10.3% IRR
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