It was a fairly nasty start to the trading week for the S&P/ASX 200 Index (ASX: XJO) and many ASX shares this Monday.

After a rough week last week, investors clearly didn't get their mojo back over the weekend, with the ASX 200 copping a 0.56% sell-off this session. That leaves the index at 8,249.5 points.

This poor start to the Australian trading week follows a mixed end to the American trading week on Saturday morning.

The Dow Jones Industrial Average Index (DJX: .DJI) ended the week on a low, slumping 0.2%

The tech-heavy Nasdaq Composite Index (NASDAQ: .IXIC) did a little better though, eking out a 0.12% rise.

But let's return to this week and our local markets and examine how the different ASX sectors fared today. 

Winners and losers

As expected, there were far more losers than winners amongst the sectors this Monday.

Leading said losers were again gold shares. The All Ordinaries Gold Index (ASX: XGD) had another horrid day, crashing down by 2.76%.

Broader mining stocks weren't much better, with the S&P/ASX 200 Materials Index (ASX: XMJ) plunging 2.04%.

Then we had real estate investment trusts (REITs). The S&P/ASX 200 A-REIT Index (ASX: XPJ) tanked by 1.31%.

Tech stocks weren't spared from the selling either, illustrated by the S&P/ASX 200 Information Technology Index (ASX: XIJ)'s 0.99% shellacking.

ASX communications shares also found themselves on the wrong side of the ledger. The S&P/ASX 200 Communication Services Index (ASX: XTJ) copped a 0.76% beating by the closing bell.

We could say the same for energy stocks, with the S&P/ASX 200 Energy Index (ASX: XEJ) slumping 0.67%.

Industrial shares got off relatively lightly. The S&P/ASX 200 Industrials Index (ASX: XNJ) retreated by 0.29%.

As did healthcare stocks, evidenced by the S&P/ASX 200 Healthcare Index (ASX: XHJ)'s 0.19% dive.

Consumer discretionary shares finished lower too. The S&P/ASX 200 Consumer Discretionary Index (ASX: XDJ) dropped 0.13%.

Utilities stocks were our final losers, with the S&P/ASX 200 Utilities Index (ASX: XUJ) slipping 0.01%.

Turning to the winners now, financial shares were our best performers this Monday. The S&P/ASX 200 Financials Index (ASX: XFJ) enjoyed a 0.17% boost by the closing bell.

The only other winning sector was consumer staples stocks. The S&P/ASX 200 Consumer Staples Index (ASX: XSJ) saw a 0.1% uptick.

Top 10 ASX 200 shares countdown

Coming in as the first spot on the index today was casino operator Star Entertainment Group Ltd (ASX: SGR). Star shares had a great day, vaulting 5.13% higher to 20.5 cents each.

There was no fresh news out from Star today. As such, this jump might have been a result of the Friday afternoon announcement last week that the recently appointed Star Gold Coast CEO Mark Mackay has resigned.

Here's how the other top shares of today's trading pulled up: