As on 1st October 2015 Sun, Mercury & Rahu in Virgo, Saturn in Scorpio, Ketu in Pisces, Moon in Aries and Jupiter, Mars & Venus in Leo. Planetary transits in October: 18th Sun -> Libra, 29th Mercury -> Libra.
The planetary positions given above are at the time of Sunrise in India(Kerala) and Moon's conjunction effect on markets may be seen in countries (Asia / Europe / US) where trading take places at the time of conjunction(0°). When the angular difference between the Moon and the planet is more than 5 degrees or conjunction occurs in Rasis(constellations) other than the Sun's Rasi, there may be a delay up to 24 hours in the conjuntion effect according to their positions (Note: expect only eighty percent accuracy in assumptions based on Moon's conjunction with Mars(-), Venus(-) and Jupiter(+) as some other astro factors may also influence the market). As Moon conjuncts with Venus and Mars on 8th and 9th respectively Nifty may move downwards on 9th. Ordinarily market reciprocates Sun's movement in the Rasi chakra on 0° to 180° line. The popular adage "Sell in May and buy back in November" can be linked to this. During October Sun will reach the bottom of the Rasi chakra and reverse it's direction. Hence the expectation of a upmove in Nifty during the month. But, since many other factors may also influence the movements of Nifty, date of reversal may be delayed or advanced in some occassions - 2009 & 2014 were such years.