Klac

Sources: Lam Research and KLA-Tencor.

What: Shares of Lam Research (NASDAQ:LRCX) rose as much as 10.5% on Wednesday and KLA-Tencor (NASDAQ:KLAC) investors saw their stock make a 25% jump. The two moves share the same catalyst, as Lam is buying KLA-Tencor in a blockbuster $10.6 billion deal.

So what: Lam's offer of $32 per KLA-Tencor share comes in a combination of cash and stock, so the final price tag will move along with Lam's share prices. The deal has been approved by the boards of both companies, awaiting approval from shareholders and the usual regulatory bodies. If all goes as planned, the merger should close in the summer of 2016.

It's rare to see both partners in a freshly announced merger move up on the news, but that's exactly what happened here.

Now what: The proposed pairing may be structured as a buyout of KLA-Tencor but is more of a merger of equals: The two market caps stand just 14% apart, though Lam's sales are about twice the size of KLA-Tencor's revenue streams.

The new company plans to stick with the Lam Research name and ticker, adopting Lam Research CEO Martin Anstice as its first CEO.

Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

Lam's semiconductor manufacturing technology is envisioned pairing up with KLA-Tencor's chip inspection and testing platforms for a top-to-bottom infrastructure play. The chip market itself has seen several merger announcement recently, and it only makes sense to start consolidating the next link of the industry's food chain as well.

Both companies also reported quarterly results alongside the merger news. KLA-Tencor saw flat year-over-year revenue growth while earnings jumped 51% higher, easily beating analyst estimates in the process. Lam Research met Wall Street's revenue targets while exceeding earnings targets, reporting 8% higher sales and 21% stronger adjusted earnings.

So this was not a move born of desperation, but rather two strong competitors joining forces at a strategically sensible point.

Anders Bylund has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.