What risk management mistake did optionsellers.com fund manager do to blow up his fund and clients?

Discussion in 'Risk Management' started by helpme_please, Nov 18, 2018.


  1. Did they have time to cover? the price shot up in the matter of days or hours?
     
    #21     Nov 18, 2018
  2. sle

    sle

    Not my preferred strategy, but that's not really true. Institutional finance (especially sell-side) is not a good indicator since most of these guys would get their risk cut at the bottom of the drawdown and could never recover. There are several options sellers who've been around for years and years, like Max Ansbacher.

    The only risk management that you can apply here is conservative sizing. At the extreme, if you are selling puts that are cash-secured, you'd never blow up but your return on capital is not going to be stellar.
     
    #22     Nov 18, 2018
  3. Years and years or decades and decades? Hedged or unhedged? Covered or uncovered? I know you know that answers to those questions make all the difference.

    By the way Ansbacher does not just sell options they are long gamma and Vega as well.

     
    #23     Nov 18, 2018
  4. When shit hits the fan in those moments a couple of things happen... 1) you start rationalizing that "this is the point of max loss " so wait another hour...and another hour... 2) the spreads blow up for there is a proverbial run in the bank and bid/offers get to a point where people who need to lift the ask to button up the risk suddenly become walmart shoppers and do'nt lift the ask because it is 20 cents over fair value. 3) your clearing house does it for you by hitting bids and offers indiscriminately so now your 25% loss suddenly because 40% loss bec everyones adjusting thier skew.
     
    #24     Nov 18, 2018
  5. qlai

    qlai

    I assume by managing OPM.
     
    #25     Nov 18, 2018
    murray t turtle likes this.
  6. sle

    sle

    Decades. For example, Max Ansbacher has been around for 40 years or something like that. He sells equity vol in various shapes and forms, mostly vanilla OTM puts. Used to veer into light exotics (like he used to sell WoPs when correlations where attractive) too. I think he buys back the wings, but I am not sure.

    Couple people I know that sell vol for a living all size positions very conservatively, have a reasonably good model of when the wings are rich and try to cover the extreme scenarios, sometimes by proxy. Indeed, the ones that got greedy, blew up at one point or another.
     
    #26     Nov 18, 2018
  7. sle

    sle

    Not really. I know a guy who had 30% of his net worth in XIV in Feb. He is a super-star macro trader, yet made that type of rookie mistake.
     
    #27     Nov 18, 2018
  8. Looks like the rally lasted 8 days. About half of that on the peak price day (8th)... don't know about intraday move on the last day.
     
    #28     Nov 18, 2018
  9. Agree with those more qualified statements. Selling premium with hedges in the wings is a very different game in town than selling premium uncovered.

     
    #29     Nov 18, 2018
  10. smallfil

    smallfil

    Risk management applies to naked calls as well! What you do is buy a higher strike OTM call in adverse cases like this. That way, you limit your losses. I say limit because you will still suffer huge losses but, not blow up your account. I lost thousands trying to sell calls but, I had the sense to protect myself. I did not blow up my account. Now, I just buy calls and puts where the worst case scenario is the lost of the total premiums paid and not a penny more! Upside is multiples of the premium if the trade works.
     
    #30     Nov 18, 2018
    PJB1994 and cvds16 like this.