RT Journal Article SR Electronic T1 Crowded Trades: Implications for Sector Rotation and Factor Timing JF The Journal of Portfolio Management FD Institutional Investor Journals SP 46 OP 57 DO 10.3905/jpm.2019.45.5.046 VO 45 IS 5 A1 William Kinlaw A1 Mark Kritzman A1 David Turkington YR 2019 UL https://pm-research.com/content/45/5/46.abstract AB Crowded trades are often associated with bubbles. If investors can locate a bubble sufficiently early, they can profit from the run-up in prices. But to profit from a bubble, investors must exit the bubble before the sell-off erodes all of the profits. The authors propose two measures for managing exposure to bubbles. One measure, called asset centrality, locates crowded trading, which they show is often associated with the formation of bubbles. The other is a measure of relative value, which helps to separate crowding that occurs during a bubble’s run-up from crowding that occurs during a bubble’s sell-off. Neither measure by itself is sufficient for identifying the full cycle of a bubble, but the authors show that together these measures have the potential to locate bubbles in sectors and in factors as they begin to emerge and to identify exit points before they fully deflate.TOPICS: Portfolio construction, factors, risk premia, risk management