PubMatic vs. Google: Cramer's lightning round preference.

• Jim Cramer is once again answering callers' stock questions at a rapid pace, as indicated by the ringing of the lightning round bell on "Mad Money."

Although they are a well-run company, I prefer [] and [] over them. That's the one to buy.

Since they have to open their books, I'm gun shy.

: “You can have this as your [speculative stock].”

You must remain committed to them, despite their being good.

Disclosure: Cramer’s Charitable Trust owns shares of Google-parent Alphabet.

Join the CNBC Investing Club to receive updates on Jim Cramer's market moves.