Telco: Defensive Sector in a Market Downturn?

I was getting back in the loop of market technicals today, and downloaded this chart of ranked returns in the DJ STOXX 600 industry groups. (See below)

Historically, I think many analysts, including yours truly on some occasions in the past, have argued that telco is a defensive sector in a market downturn (as it was at least for three months following 9/11). It's therefore interesting to note that telco, on a year-to-date basis, is 14th out of 18 sectors (down 26%), and the ones below it are non-bank financials (i.e., consumer credit, et al.), construction and construction materials, retail, and banks.
 

Click to enlarge

STOXX ranked returns YTD

In other words, telco is just managing to outperform the four sectors universally acknowledged as obvious casualties of the credit hangover. But wait, broadband and mobile are established as essential services, like electricity and water. So what's going on here? De-leveraging is complete, the era of stupid M&A  (Deutsche Telekom (DT) aside) is over, "market repair" is complete or underway in a number of markets, so what's the problem?

I'll be honest and say I don't really know. Looking at the rankings on a one month basis, telco rates 12th out of 18, on a three-month basis it's number seven, and on six months, number 14. So clearly there's a lot of volatility in investor sentiment, but in all four cases, the financials are somewhere close in the rankings. I'm sure telcos would love to be acknowledged as serious financial services players, but there are no examples yet in Europe to warrant such an association - and I can't see any obvious factors to explain such an apparently strong correlation.

Disclosure: None