The following video is from Wednesday's Market Foolery podcast, in which host Chris Hill, along with analysts Joe Magyer and Bryan Hinmon, discusses the top business and investing stories.

In today's edition, the guys discuss Berkshire Hathaway's (BRK.A -0.49%) (BRK.B -0.35%) big share buyback that drove share prices up, and why they think the stock is still a buy. Also, Facebook (META -0.84%) has joined the Nasdaq 100, and we hear why joining an index isn't automatically a good thing for a company. Costco (COST 0.72%) had another fantastic quarter, and we hear how that may already be priced into the company's fairly pricey multiple, which is why it wasn't a needle-mover for shares.

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