If you thought this was going to stop me from posting the meme, you thought wrong.
This wouldn't be a record closure of a stock market. Egypt's stock market was closed for 55 days in 2011 during the Egyptian Revolution. But it is starting to get into that territory. The Moscow Exchange was last open on February 24th. This would be at least 24 days closed.
It is certainly the longest closure for the Moscow Exchange and the longest closure of a major stock market with a market cap this large.
This pause won't have much ability to shield from the fallout of the sanctions, but they are probably more concerned about domestic sentiment around the war. And hoping the central bank is on better footing down the road than right now, so as to buoy the market with stock purchases. I doubt it will do much to avert the damage, but a pause is essentially costless for them at this point in the grand scheme and opening the market now has a lot of possible harms.
Egypt and Greece's long pauses did help stop huge fallout when they did reopen later, but those were two very different crises than this war and necessarily more short-lived than this sanction regime and war will likely be