The payout is near.
Defunct crypto exchange Mt Gox sent nearly 47,229 BTC to another address late Thursday. 3,141,563,389 USD at current price.
The Japanese trustee acting on behalf of Mt. Gox, Nobuaki Kobayashi, holds approximately 142,000 bitcoin, 9,4B USD at current price.
The payout has already begun. SBI and Bitbank have returned the MTgox bitcoin to their creditors. The market has not felt an impact yet. Even bitcoin is always moving upward otherwise.
I can't really trust this news. But, it gives us a small insight. It shows that not all MTgox creditors intend to dump their BTC.

Time factor also affects the impact. I believe not all creditors are dumping thousands of BTC at once, as the German government did so.