Wondering if anyone here is using a such thing. Pros and cons. Best practices. Thanks. https://www.investopedia.com/terms/c/collar.asp
It's another tool in the box. Nothing intrinsically good or bad about it. Depends what you're trying to accomplish. There's no free lunch anywhere!
What actually I am trying to accomplish is to freeze my portfolio, without selling and realizing the gains, for about 6 months. Can you suggest any better solution?
Collar is a reasonable option. Nothing will be perfect. There are other option. For example, you could sell futures equivalent to your portfolio thereby locking your value without realizing any gains on your original portfolio. Of course you'd have to roll the contacts, and be subject to capital gains/loss on the futures themselves.