I am not a big Monero supporter but I own some coins. It is very hard to understand why the coin shows such weakness when Bitcoin and most other coins are increasing their values over the last days/weeks. It seems to me that investors are selling their Moneros in oder to get into the other coins to jump on the pumping train.
As for the weakness thing, I think you're getting confused with 'low price'. Most people would agree that Monero is currently very cheap, but as for being a coin that 'shows weakness' this can't
literally be true, as Monero is currently the market leader in respect of private currencies. Demonstrably, the most respected with the largest community at any rate.
There's no evidence to suggest that 'investors are selling Moneros to get other coins', outside of the normal market noise that trails BTC bull-runs. The nearest private competitor, Dash, has substantially less volume in regard to the buy books, and that remains the case semi-permanently irrespective of BTC. The conclusion is that a lot of
whales are waiting for the true XMR floor to materialise, at which point the price will ascend.