The California State Teachers' Retirement System, the second-largest public pension by assets in the U.S., bought more shares of movie-theater chain $AMC Entertainment (AMC.US)$ and analytics-software firm $Snowflake (SNOW.US)$, acquired shares of the $Tilray Brands (TLRY.US)$, and reduced its holdings in $Berkshire Hathaway-B (BRK.B.US)$, Buffett's investment juggernaut. Calstrs, as the pension is known, disclosed the stock trades, among others, in a form it filed with the Securities and Exchange Commission.
Calstrs said it doesn't comment on its holdings or on individual investment managers. The pension managed $321.9 billion in assets as of Oct. 31.
AMC stock caught fire during the meme-stock frenzy early in the year, when small investors communicating via social media bought shares of beaten-down companies in hopes of triggering gains that would force people who had bet against those stocks to buy in order to close their bets. The trend led to a surge in volatility that prompted the Federal Reserve to warn this month that meme-stock related market swings could be a risk to the financial system. AMC's third-quarter results were better than expected, and the chain is now accepting cryptocurrencies for online payments.
Yesterday, AMC shares fell 15% to their lowest close since May. The Omicron variant of coronavirus has revived fears that new lockdowns could keep movie-goers away from theaters.
Mooers, what do you think of the giant pension's investment in these most-volatile stocks?

Wednesday, December 10, 2021
By Danilo
$Oracle (ORCL.US)$ $Peloton Interactive (PTON.US)$ $Boston Scientific (BSX.US)$

A recent $Amazon (AMZN.US)$ test of a $Rivian Automotive (RIVN.US)$ electric van showed that the battery's performance is below the EV startup's claims.
According to the report, the battery drained 40% faster than usual if the van's heating or cooling was on. Rivian said in its prospectus that the all-electric delivery vans would have a range between 120 miles and 150 miles, depending on size.
Rivian shares fell 8.2% to 118.11 on Monday. RIVN stock rose 67% in the first few days after its IPO, to 129.95. But shares closed down 1% last week after a wild ride.
Among other EV stocks, China-based  $XPeng (XPEV.US)$ edged up 1.1% after briefing reclaiming a buy range intraday.  $NIO Inc (NIO.US)$surged 7.3%, while $Li Auto (LI.US)$ advanced 1.9%.
Among U.S. automakers,  $Lucid Group (LCID.US)$ reversed opening gains and dropped 8.2%,  $General Motors (GM.US)$ rose 3.7% and Ford (F) was up 5.4%. U.S.-traded shares of Germany's $VOLKSWAGEN A G (VWAGY.US)$ dipped 0.4%.
It seems that there are formidable enemies everywhere.
Do you think RIVN is ready to compete in the EV battlefield? 
Source:
Tesla Stock Rises As Musk Teases Model S Plaid In China; Battery Issue Drains Rivian Stock