Monday, Dec. 15:

Taxi app pricing:
Charge extra in a crisis
Really price gouging.

Related link: What Uber’s Sydney Surge Pricing Debacle Says About Its Public Image

Tuesday, Dec. 16:

Ruble trading halt
Await capital controls;
Bearish on Moscow.

(Proxies for potentially affected investments discussed by Reuters include RSX, NORW)

Wednesday, Dec. 17:

Trading floor action.
Wave at others like crazy;
High adrenaline.

Thursday, Dec. 18:

Opening Cuba.
Travel and tourism boom.
Light up a cigar.

(Companies mentioned in NYT link include Pepsi (PEP), Caterpillar (CAT), Deere (DE), Marriott (MAR).)

Friday, Dec. 19:

Hacking at Sony.
Offline systems lose money;
North Korean smirk.