March 15th, 2008, 8:20 am
Well, I don't get it because it seems that they short the new index rather than the old index and that's exactly why the spreads of the indices are expected to widen.So it's not about selling the old one and buying the new one and I still don't get the trading idea behind this.QuoteOriginally posted by: NoelWatsonQuoteOriginally posted by: nicholaihelThankx for the answers.That's part of what I read in Dow Jones Newswires:"With significantly lower dispersion in the new Crossover index, this should have an impact, according to SocGen.And, of course, investors normally roll short positions into the new series before longs, meaning the new on-the-run index tends to trade wider than its predecessor.Looking at the aggregate impact of these factors, SocGen expects all the new iTraxx indexes to open wider. The bank sees Markit iTraxx Crossover S9 trading over 17 basis points wider than S8. Europe S9 could trade 4bps wider in 5-year, and HiVol 7.2bps wider.The widening could be more pronounced in the 3-year maturity, where curves are steeper."So the thing is I actually wonder why investors would tend to roll short positions into the new series before longs?If I'd expect the spreads to widen knowing this widening effect after the rollover, I'd long rather than short the Itraxx waititng for a correction. But it seems there's something going on that I don't understand.Any explanations for that?The only reason I can think they would roll short (sell old index and buy new) is because they know CPDOs are having to do the opposite so it shouldn't be a crowded trade.