The S&P/ASX 200 Index (ASX: XJO) has kicked off the trading week on a fairly negative note this Monday.
After an initially positive start this morning, the ASX 200 spent most of the afternoon losing steam and ended the session deep in red territory. The index ended up closing at 7,451.5 points, a loss of 0.5%.
This miserly beginning to the ASX trading week follows a slightly more upbeat conclusion to the American start to the new year last week.
Last Friday had the Dow Jones Industrial Average Index (DJX: .DJI) gain a nervous 0.069%.
The Nasdaq Composite Index (NASDAQ: .IXIC) rose by a slightly stronger 0.095%.
But let's get back to how the local markets fared this Monday with a discussion of how the various ASX sectors went.
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Winners and losers
Not one sector managed to pull off a rise this Monday.
The worst place to be was in ASX tech stocks. The S&P/ASX 200 Information Technology Index (ASX: XIJ) had a clanger today, tanking by 0.76%.
Next up was the healthcare space. The S&P/ASX 200 Healthcare Index (ASX: XHJ) didn't exactly live up to its name and fell 0.76% as well.
Following healthcare we had the mining sector. The S&P/ASX 200 Materials Index (ASX: XMJ) also had a day to forget, dropping by 0.73%.
Consumer staples shares weren't in demand either, illustrated by the S&P/ASX 200 Consumer Staples Index (ASX: XSJ)'s slide of 0.6%.
Communications stocks didn't escape the pessimism. The S&P/ASX 200 Communication Services Index (ASX: XTJ) sank 0.46% by the closing bell.
Nor did industrial shares. The S&P/ASX 200 Industrials Index (ASX: XNJ) lost 0.34% of its value today.
Next, we have a poor showing from financial shares to go through. The S&P/ASX 200 Financials Index (ASX: XFJ) had a taxing time and slumped 0.43% this Monday.
Utilities stocks came in just behind that, with the S&P/ASX 200 Utilities Index (ASX: XUJ) enduring a 0.25% decline.
Real estate investment trusts (REITs) weren't saving anyone's portoflios. The S&P/ASX 200 A-REIT Index (ASX: XPJ) flamed out with a 0.23% dip.
Consumer discretionary stocks were on the nose too, evidenced by the S&P/ASX 200 Consumer Discretionary Index (ASX: XDJ)'s 0.2% step backwards.
Gold shares didn't prove to be a safe haven. The All Ordinaries Gold Index (ASX: XGD) finished 0.11% lower.
Our final, and best, sector was energy shares. However, the S&P/ASX 200 Energy Index (ASX: XEJ) couldn't quite break even and inched 0.03% lower.
Top 10 ASX 200 shares countdown
ASX uranium share Boss Energy Ltd (ASX: BOE) took out this Monday's top spot. Boss shares rose by a strong 8.51% up to $4.59 each this session.
There was no fresh news out of the company today, but we went through some possible catalysts for this move here.
Here's how the rest of the top ten shares closed out the day:
| ASX-listed company | Share price | Price change |
| Boss Energy Ltd (ASX: BOE) | $4.59 | 8.51% |
| Arcadium Lithium plc (ASX: LTM) | $10.39 | 3.80% |
| De Grey Mining Ltd (ASX: DEG) | $1.24 | 3.77% |
| Paladin Energy Ltd (ASX: PDN) | $1.05 | 3.45% |
| IDP Education Ltd (ASX: IEL) | $20.74 | 2.57% |
| Silver Lake Resources Ltd (ASX: SLR) | $1.155 | 2.21% |
| GUD Holdings Ltd (ASX: GUD) | $11.56 | 2.12% |
| Whitehaven Coal Ltd (ASX: WHC) | $8.02 | 2.04% |
| Bellevue Gold Ltd (ASX: BGL) | $1.515 | 2.02% |
| Insurance Australia Group Ltd (ASX: IAG) | $5.84 | 1.92% |
Our top 10 shares countdown is a recurring end-of-day summary to let you know which companies were making big moves on the day. Check in at Fool.com.au after the weekday market closes to see which stocks make the countdown.
