Electro Scientific Industries Inc
Electro Scientific Industries, Inc. (ESI) is an American high technology company headquartered in the Portland, Oregon, metropolitan area, specifically in Beaverton, Oregon, since 2021, but from 1963–2021, it was based in the unincorporated Cedar Mill area just north of Beaverton. ESI is a developer and supplier of photonic and laser systems for microelectronics manufacturers. Founded in 1944, it is the oldest high-tech company in Oregon. Along with Tektronix, and later Intel, it has spawned numerous technology-based companies in the Portland area, an area known as the Silicon Forest. From 1983 to 2019, shares in the company were publicly traded on NASDAQ, under the ticker symbol ESIO. In October 2018, it was announced that a deal had been reached to sell the company to MKS Instruments, Inc. The deal was completed on February 1, 2019, making ESI a subsidiary of MKS.
What If You Bought ESIO Earlier?
Estimate based on split history only. Excludes dividends, fees, taxes, and intraday movement.
Stock Split History
Newest split first. Cumulative multiple = compounded growth from that date to today.
| Split Date | Price Before | Ratio | Split Multiple | Cumulative |
|---|---|---|---|---|
| Feb 25, 2000 | — | 2-for-1 | 2× | 2× |
Electro Scientific Industries Inc Market Cap Timeline
A validated annual market-cap history is unavailable from the current sources. The current market-cap snapshot, when shown above, is not treated as historical evidence. Split markers cover all 1 recorded split. Filled dots have market-cap data for that year; hollow dots mark split years outside market-cap source coverage.
At least two source-validated annual observations are required before this page draws a market-cap timeline. A current snapshot is not treated as historical trend data.