Why these 4 ASX shares are ending the week on a high

The S&P/ASX 200 (Index: ^AXJO) (ASX: XJO) is on course to finish the week with a disappointing decline. In afternoon trade the benchmark index is down 0.4% to 5,766 points.

Four shares that have defied the market and raced higher are listed below. Here’s why they are ending the week on a high:

The Avz Minerals Ltd (ASX: AVZ) share price rose 8.5% to 25.5 cents before being placed into a trading halt this morning. According to the release, AVZ Minerals requested the trading halt as the prospective lithium miner prepares a response to a price query request from the ASX. AVZ Minerals’ shares are expected to remain in the halt until the earlier of commencement of normal trading on April 4 or the release of the response.

The Oliver’s Real Food Ltd (ASX: OLI) share price has jumped 16% to 25.5 cents after the healthy fast food company announced that it has changed its CEO. The controversial and often outspoken Jason Gunn will be replaced with Gregory Madigan on April 9. Mr Madigan has previously been a director of Subway UK.

The Senex Energy Ltd (ASX: SXY) share price has climbed 8% to 40 cents after the energy company announced that it has been granted a petroleum lease and preliminary environmental approvals from the Queensland Government to develop Project Atlas for domestic gas supply. Senex now expects to receive all remaining State and Commonwealth approvals in mid-2019, with delivery of first gas to the domestic market targeted for late 2019.

The Tawana Resources N.L. (ASX: TAW) share price is up almost 3.5% to 46.5 cents after the miner provided an update on ore commissioning at its Bald Hill lithium and tantalum mine in the Eastern Goldfields region of Western Australia. Performance tests have been taking place, one of which revealed that initial sampling of the primary concentrate returned a high-quality grade of 7.03% lithium carbonate.

Missed out on these gains? Then don't miss these top shares that are tipped for big things in 2018.

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Motley Fool contributor James Mickleboro has no position in any of the stocks mentioned. The Motley Fool Australia has no position in any of the stocks mentioned. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips.

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