The Dow Jones breached the 21,000 mark for the first time ever on Wednesday, as bank stocks surged on higher chances of an interest rate hike this month, while a more measured tone in President Donald Trump’s speech reassured investors. Royal Bank (RY), Bank of Montreal (BMO) and National Bank (NA) all posted solid quarters with results that beat estimates. MacDonald Dettwiler (MDA) said it had agreed to buy U.S.-based satellite imagery provider DigitalGlobe (DGI) for about $3.10B to strengthen its position in the U.S. market. Kinaxis (KXS) delivered solid Q4 earnings. However, slower professional services revenue growth led to a slightly weaker than expected top line. The cannabis industry was rattled after White House Press Secretary Sean Spicer said he expects the U.S. Department of Justice to increase enforcement of federal laws prohibiting recreational marijuana, even in states where it’s already legal. Here are five stories we found interesting this week":

1. A vicious retirement circle: the lower yields go, the more a retiree needs to spend to buy that income
2. The Buffet letter and the "permabull"
3. Do not confuse a bull market for increased investment skill
4. Ramifications of diminishing European monetary stimulus may be felt globally
5. Top-ranked managers place their investment bets for 2017