You must have read the 05 Dec 2017 article/interview with Chief Strategy Officer Constantine ,on Bankex site..(Insider Responds To Questions From Crypto-community About The BANKEX Token Sale And More).

......Young: What other restrictions will BANKEX have for the purchase of tokens in the second Token Sale?
......Constantine: To offer security for the entire ecosystem, including for individual token buyers, we will also impose a 1 year restriction on the resale of the tokens purchased in the second Token Sale. This restriction is intended to protect our individual token holders based on the assumption that investors with great financial resources may try and affect the market through large purchases or sales of BKX tokens.

For those who are interested the following link will take you to this article:

https://blog.bankex.org/bankex-insider-respond-to-questions-from-crypto-community-about-the-bankex-token-sale-and-more-e47d5c0a50bc

This is so institutional buyers don’t create unwanted price volatility and there is a steady flow of tokens into the secondary market..... It’s a great idea by the Bankex team and demonstrates that there are ICO’s that are not just for speculation, but rather are standing by their product, their vision.

I am glad to be financially participating in this ICO and have been recommending to my friends and colleagues who are already involved in the crypto world.